For your indicator, what is the wavelength of maximum absorbance for the ph < 4. 00 solution? what is the wavelength of maximum absorbance for the ph > 10. 00 solution? what colors correspond to these wavelengths? how do the observed colors of these solutions relate to the colors at their absorbance maxima?

Answers

Answer 1

For our indicator, the wavelength of maximum absorbance for the ph < 4.00 solution is equals to the 450 nm and the color correspond to this wavelength is yellow. the wavelength of maximum absorbance for the ph < 10.00 solution is equals to the 590 nm and the color correspond to this wavelength is purple. The colors of these solutions relate to the colors at their absorbance maxima is observed due colors complementary nature of observing colour with color of the wavelength that is being absorbed.

The color of bromcresol violet changes from yellow in its acidic form to purple in its basic form. After we make all of the experiment we should obtain a graph similar to the one which present above figure 2. Now, to select the wavelength of maximum absorbance for the pH < 4.00 solution pick the line of the graph traced at pH 4. This line has a maximum around 450 nm (look closely at the graph). The color in this case is yellow. To determine the wavelength of maximum absorbance for the pH > 10.00 solution pick now the line traced for the solution at pH 10. The maximum curvature should be around 590 nm. The color for this wavelength is purple. For the last question, is about the observation of the colors of these solutions relate to the colors at their absorbance maxima. The observing colours are complementary to the color that is measured the absorption wavelength. We can say that 590 nm is the wavelength of the red color. Since the red hue is the absorbed color, the reflected color is what we see, the complementary color. The same goes for yellow. Therefore, yellow is a complementary color of the wavelength that is being absorbed.

For more information about wavelength, visit :

https://brainly.com/question/29325232

#SPJ4

Complete question:

For your indicator, what is the wavelength of maximum absorbance for the ph < 4. 00 solution? what is the wavelength of maximum absorbance for the ph > 10. 00 solution? what colors correspond to these wavelengths? how do the observed colors of these solutions relate to the colors at their absorbance maxima?See the above figure.

For Your Indicator, What Is The Wavelength Of Maximum Absorbance For The Ph &lt; 4. 00 Solution? What
For Your Indicator, What Is The Wavelength Of Maximum Absorbance For The Ph &lt; 4. 00 Solution? What

Related Questions

Which can be excluded from the list of events caused by the flow of thermal energy inside the Earth? (1 point)

A. Volcanic eruptions

B. Earthquakes

C. Thunderstorms

D. Valley formations

Answers

Answer:

C. Thunderstorms

Explanation:

It is formed when three components: unstable weather conditions, uprising cold air, and enough moisture are present in the area. Based on the criteria for thunderstorms to form, it is not related to the flow of thermal energy inside the Earth.

coefficient in a chemical reaction is a number that goes in front of an element or compound in a balanced equation. for example in the balanced equation below the coefficient in front of the h2o is 2, meaning 2 molecules of h2o are reacting to make 2 molecules of h2 and 1 molecule of o2. 2 h2o --> 2 h2 o2 what is the coefficient that goes in front of the eca in the reaction below. e3bc4 d(ca)2 --> d3(bc4)2 eca

Answers

The coefficient that goes in front of the ECA in the chemical reaction given above is 2.

It has been indicated that coefficient in a chemical reaction is a number that goes in front of an element or compound in a balanced equation. The unbalanced chemical equation for the given reaction is:

[tex]E_{3} BC_{4} D(CA)_{2}[/tex]  → [tex]D_{3} (BC_{4} ) ECA[/tex]

The balanced equation of the chemical reaction above is:

[tex]2E_{3} BC_{4} D(CA)_{2}[/tex]  → [tex]D_{3} (BC_{4} )_{2} ECA[/tex]

We can see that 2 comes before ECA in the balanced chemical equation above. Therefore, the coefficient that goes in front of the ECA in the chemical reaction given above is 2.

More on chemical reaction coefficient: https://brainly.com/question/31143822

#SPJ11

which one of the following molecules has the highest boiling point? you will explain why in the next question. responses 3-methoxy-1-propanol 3-methoxy-1-propanol 1,2-dimethoxyethane 1,2-dimethoxyethane 1,4-butanediol 1,4-butanediol 1,1-dimethoxyethane 1,1-dimethoxyethane 2-methoxy-1-propanol

Answers

The molecule with the highest boiling point is 1,4-butanediol. This is because of the presence of intermolecular hydrogen bonding. Thus, the correct option is C.

What is intermolecular hydrogen bonding?

A hydrogen bond is an intermolecular force that exists between a hydrogen atom bonded to a highly electronegative atom (like N, O, or F) and another highly electronegative atom in another molecule. Hydrogen bonding is a type of dipole-dipole interaction that occurs between molecules that have a permanent dipole.

The four molecules, 3-methoxy-1-propanol, 1,2-dimethoxyethane, 1,4-butanediol, and 2-methoxy-1-propanol, all have oxygen atoms that are capable of forming hydrogen bonds. In order to form a hydrogen bond, a hydrogen atom in one molecule must be bonded to an electronegative atom like oxygen or nitrogen, and another electronegative atom in a neighboring molecule must be present.

In this case, 1,4-butanediol has two -OH groups on the ends of the carbon chain that are capable of forming hydrogen bonds with neighboring molecules, resulting in a higher boiling point. Because of the presence of intermolecular hydrogen bonding, the molecules have stronger intermolecular forces that require more energy to break, resulting in a higher boiling point.

Therefore, the correct option is C.

Learn more about Boiling point here:

https://brainly.com/question/2153588

#SPJ11

temperature decreasing is what causes the crystals to form on the wooden stick?

Answers

As the temperature drops, the sugar crystallizes because a supersaturated solution is unstable and contains more solute (in this case, sugar) than can remain in solution. The more molecules that link the sugar crystals at a low temperature, the more rock candy is formed.

Which one of the following sets of units is appropriate for a third-order rate constant? s–1 mol L–1s–1 L mol–1s–1 L2 mol–2s–1 L3 mol–3s–1

Answers

The appropriate unit for a third-order rate constant is  The L² mol-² s-¹. A third-order reaction is a type of chemical reaction where the concentration of each molecular responding determines how quickly the reaction proceeds.

What is rate constant ?

A reaction rate constant, or reaction rate coefficient, k, quantifies the rate and direction of a chemical reaction in chemical kinetics. The rate constant, also known as the specific rate constant, is the proportionality constant in the equation expressing the relationship between the rate of a chemical reaction and the concentrations of the reactants.

What is third order reaction?

A third-order reaction is a type of chemical reaction where the concentration of each molecular responding determines how quickly the reaction proceeds. Typically, the variation of three concentration factors in this reaction determines the rate.

There may be various cases involved when dealing with a third-order reaction. It might be;

(i) The concentrations of the three reactants are equal.

(ii) Two reactants are present in an equal amount, but one is present in a different amount.

(iii) The concentrations of the three reactants vary or are uneven.

Use formula,

(mol/L)¹⁻ⁿ s⁻¹

To know more about rate constant ,visit ;

brainly.com/question/20305871

#SPJ1

the maximum solubility of salicylic acid in pure ethanol is 0.370 g/ml. the molal boiling point elevation constant, kb, for ethanol is 1.07 c/m. the density for ethanol is 0.789 g/ml. the boiling point for ethanol is 78.3 c. what is the maximum temperature change for a solution of salicylic acid in ethanol? show all calculations.

Answers

The maximum temperature change for a solution of the salicylic acid compound in ethanol is about 0.002292°C.

What is Maximum temperature change?

To calculate the maximum temperature change for a solution of salicylic acid in ethanol, you need to use the boiling point elevation equation:

ΔT = Kb × m

where, Kb is the molal boiling point elevation constant, and m is the molality of the solution. The molality of the solution can be calculated using the following equation:

m = (mass of solute (g))/(1000 × molal mass (g/mol)*density of the solvent (g/mL))

Therefore, for the given equation:

m = (0.370 g)/(1000 × 137.1 g/mol × 0.789 g/mL) = 0.002181 mol/kg

ΔT = Kb × m = 1.07 c/m × 0.002181 mol/kg = 0.002292°C

Therefore, the maximum temperature change for a solution of salicylic acid in ethanol is 0.002292°C.

Learn more about Salicylic acid here:

https://brainly.com/question/14635153

#SPJ11

the rate of a second order reaction can depend on the concentrations of more than one reactant. the rate of a second order reaction can depend on the concentrations of more than one reactant. true false g

Answers

The given statement that "the rate of a second order reaction can depend on the concentrations of more than one reactant" is true because the rate of the reaction is proportional to the concentration of both reactants.

What is a second-order reaction?

The second-order reaction is a chemical reaction in which two reactants interact and the rate of the reaction is proportional to the concentration of both reactants or to the square of the concentration of a single reactant. The equation is as follows:

k = k[reactant1] [reactant2] or k = k[reactant1]²

The reaction rate constant (k) for a second-order reaction is proportional to the concentration of one or two reactants. The concentration of the reactants has an impact on the reaction rate, as indicated by the order of the reaction.

Therefore, the statement that "the rate of a second order reaction can depend on the concentrations of more than one reactant" is true.

Learn more about second-order reaction here: https://brainly.com/question/14520581.

#SPJ11

Please Help With this question, No.3

Answers

Answer: mass is 57(g)

Explanation:

If a solution had a pOH of 7. 39 then it has a pOH of?

Answers

The relationship between pH, pOH, and the concentration of hydroxide ions in a solution is given by:

pH + pOH = 14

If a solution has a pOH of 7.39, we can find its pH by subtracting the pOH from 14:

pH = 14 - pOH

pH = 14 - 7.39

pH = 6.61

Therefore, the solution has a pH of 6.61.

The pH scale, which describes the connection between pH, pOH, and the quantity of hydroxide ions, is an essential concept in chemistry. A pH of 7 is regarded as neutral, whereas values below 7 are acidic and those over 7 are basic (also called alkaline).

learn more about , pOH here:

https://brainly.com/question/480457

#SPJ4

Explain which ions cause the different colours of the solution Magnesium Chloride + Water

Answers

Answer:

Explanation:

Magnesium chloride is a compound composed of magnesium and chlorine ions. When it is dissolved in water, it dissociates into its constituent ions, which are surrounded by water molecules.

The color of the solution depends on the presence of any other ions that may be present. In the case of magnesium chloride, it is colorless in its pure form, and the color of the solution is determined by the presence of the chloride ions.

When the solution is dilute, it appears colorless. As the concentration of chloride ions increases, the color of the solution changes from light green to deep green, and finally to brownish-red. The intensity of the color is proportional to the concentration of chloride ions present.

The color change is due to the interaction between the chloride ions and the water molecules surrounding them, which absorb specific wavelengths of light. This absorption causes the solution to appear colored to the human eye. Therefore, the different colors observed in the solution of magnesium chloride and water are due to the presence of chloride ions and the concentration of these ions.

Answer:

Magnesium chloride dissolves in water to give a faintly acidic solution (pH = approximately 6).

The appearance of this reaction or solution is a bright white powder (in the picture)

The ion which makes this white powdery figure for magnesium chloride are salts that are highly soluble in water, for example: sodium ion (Na+).

Write the formula for the conjugate acid of each of the following bases.Express your answer as a chemical formula.a)C2H5NH2b)ClO4-c)HPO42-d)HCO3-

Answers

Conjugate acid forms by adding H+ to a base, making a species with a positive charge. Strength depends on the base's strength. Important in acid-base reactions.

The conjugate acid of a base is the species that is formed when a proton (H+) is added to the base molecule. It has one more proton than the base and will have a positive charge. The strength of the conjugate acid depends on the strength of the original base, with the conjugate acid of a weak base being a weak acid, and the conjugate acid of a strong base being a weak acid. The formulas for the conjugate acids of the given bases are C2H5NH3+ for C2H5NH2, HClO4 for ClO4-, H2PO4- for HPO42-, and H2CO3 for HCO3-. Understanding conjugate acids is important in acid-base chemistry because it helps to explain the behavior of acids and bases in chemical reactions.

learn more about conjugate acid here:

https://brainly.com/question/30164261

#SPJ4

How would the pKa of the unknown acid be affected (higher, lower, or no change) if the following errors occurred? Please explain.
a) The pH meter was incorrectly calibrated to read lower than the actual pH.
b) During the titration several drops of NaOH missed the reaction beaker and fell onto the bench top.
c) Acid was dissolved in 75 mL of distilled water rather than 50 mL of distilled water.
Also, the same question, but if it says: How would the molar mass of the unknown acid be affected (higher, lower, or no change) if the following errors occurred? Please explain.
Same things that are asked in part a,b, and c.

Answers

The pKa will be higher in the unknown acid solution. The pH of the unknown acids would not be affected by several drops of NaOH solution.

What is pKa and pH of solution?

The pKa of the unknown acid would be higher if the pH meter was incorrectly calibrated to read lower than the actual pH. This is because if the pH meter reads lower than the actual pH, the measured pH would be lower than the actual pH.

As pKa is the negative logarithm of the acid dissociation constant, Ka, which is directly proportional to the hydrogen ion concentration, [H⁺], a decrease in the measured pH would lead to a decrease in the measured [H⁺]. Since:

pKa = -log Ka = -log [H⁺] + log [HA], a decrease in [H⁺] would lead to an increase in pKa.

The pKa of the unknown acid would not be affected if several drops of NaOH missed the reaction beaker and fell onto the bench top. This is because the number of moles of NaOH that react with the unknown acid is not affected by the drops that miss the beaker.

The number of moles of NaOH that react with the unknown acid is determined by the volume and the concentration of NaOH added to the beaker and the volume and the concentration of the unknown acid in the beaker. Therefore, the pKa would remain the same.

The pKa of the unknown acid would not be affected if acid was dissolved in 75 mL of distilled water rather than 50 mL of distilled water. This is because the pKa of an acid is an intrinsic property that is independent of the amount of the acid. The pKa is determined by the acid itself, not by the amount of acid. Therefore, the pKa would remain the same.

Learn more about pH here:

https://brainly.com/question/31035487

#SPJ11

Complete the synthesis by determining the set of reactions and the synthetic intermediate needed to convert the given alkyl halide to the primary amine. Drag the appropriate labels to their respective targets Hints NH HNNH2 1) HCrO 2) Hyo H2. Raney Ni H,NOH NaN3 excess NH NT trace acid DMF Br NH2

Answers

The synthetic intermediate required is [tex]HNNH_{2}[/tex]. The set of reactions required to convert the given alkyl halide to the primary amine is as follows; [tex]H_{2}[/tex], Raney Ni, then [tex]H_{2} 0[/tex], H+, heat, and finally Sn, HCl, and heat.

The synthesis needed to convert the given alkyl halide to the primary amine are as follows;Hydrogenation of the double bond, Hydrolysis of nitrile to primary amine  and Reduction of nitro group to aniline. The synthetic intermediate needed is HNNH2.

The set of reactions for the synthesis is as follows;

1. Hydrogenation of the double bond is done using [tex]H_{2}[/tex], Raney Ni.

2. Hydrolysis of nitrile to primary amine is done using [tex]H_{2} 0[/tex], H+, heat.

3. Reduction of nitro group to aniline is done using Sn, HCl, and heat.

So, the set of reactions required to convert the given alkyl halide to the primary amine is as follows;[tex]H_{2}[/tex], Raney Ni, then [tex]H_{2} O[/tex], H+, heat, and finally Sn, HCl, and heat. The synthetic intermediate required is [tex]HNNH_{2}[/tex].

More on organic chemistry synthesis: https://brainly.com/question/14098748

#SPJ11

enzymes reduce entropy of their substrates in reactions with multiple reactants. this is possible because:

Answers

The statement "enzymes reduce entropy of their substrates in reactions with multiple reactants" is possible because enzymes lower the activation energy of chemical reactions.

What are enzymes?

Enzymes are biocatalysts that are produced by living organisms. They can increase the rate of chemical reactions without being consumed during the process. Enzymes are proteins made up of chains of amino acids, and their function is determined by their three-dimensional shape.

Enzymes reduce the entropy of their substrates in reactions with multiple reactants. This is possible because they lower the activation energy of chemical reactions. By lowering the activation energy, enzymes make it easier for the reactants to react with one another. Enzymes make chemical reactions more efficient and faster than they would be without the enzyme.

Arrhenius equation

The Arrhenius equation shows the dependence of the rate constant of a chemical reaction on the temperature, activation energy, and frequency factor. The frequency factor represents the frequency at which reactant molecules collide and produce products. When enzymes are present, the activation energy required for the chemical reaction is lowered, making the frequency factor and the rate constant of the reaction higher. This leads to an increase in the rate of the chemical reaction.

The equation is given as; k = Ae-Ea/RT,

Where

k is the rate constant.A is the frequency factor.Ea is the activation energy.R is the ideal gas constant.T is the temperature.

Learn more about enzymes: https://brainly.com/question/1596855

#SPJ11

Arrange these species by their ability to act as an oxidizing agent. Best oxidizing agent Au3+ Fe2+ Ni2+ Na+ Poorest oxidizing agent Answer Bank

Answers

The correct order of species based on their ability to act as an oxidizing agent is Au3+ > Fe2+ > Ni2+ > Na+.

The ability to act as an oxidizing agent varies among different species. In the given set of species, the order of their ability to act as an oxidizing agent from the best to the poorest is as follows:

Au3+ > Fe2+ > Ni2+ > Na+

Au3+ is the best oxidizing agent as it has the maximum tendency to accept electrons and undergo reduction.

Fe2+ is a better oxidizing agent than Ni2+ and Na+ because it can accept two electrons easily and undergoes reduction. Ni2+ is a weaker oxidizing agent than Fe2+ and Na+ as it can only accept electrons and undergoes reduction. Na+ is the poorest oxidizing agent as it has the least tendency to accept electrons and undergo reduction. It is the best reducing agent as it readily donates an electron to become Na.

For more such questions on oxidizing agent, click on:

https://brainly.com/question/14041413

#SPJ11

For the reactionA(g) ? 2B(g), a reaction vessel initially contains only A at a pressure of PA=1.19 atm . At equilibrium, PA =0.20 atm . Calculate the value of Kp. (Assume no changes in volume or temperature.)

Answers

The value of Kp for the reaction with equilibrium pressure of A is given as PA = 0.20 atm and the initial pressure of A is 0.0190.

What is Kp?

To find the value of Kp for the reaction, we will use the expression for the equilibrium constant in terms of the partial pressures of the reactants and the products.

Kp = (PB)²/PA

where, PB is the equilibrium pressure of B.

Initially, there is no B in the reaction vessel, so the change in pressure of B is equal to its equilibrium pressure. Using the law of conservation of mass, we can write:

PV = nRT

where, P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.

Since there is no change in volume or temperature, we can write:

PV = constant or P₁V₁ = P₂V₂

where, P₁ and P₂ are the initial and equilibrium pressures of A, respectively. Since A is the only gas initially present in the reaction vessel, we can write:

P₁ = PA = 1.19 atm, P₂ = 0.20 atm V₁ = V₂

Therefore, P₁V₁ = P₂V₂ = PAV₁ = PBV₂

Since, the number of moles of A and B are related by the balanced chemical equation, we can write:

2(PB) = nB

Substituting, PB in terms of PA and V1, we get:

Kp = (PB)²/PA = (nB/2V₂)²/PA

Kp= (nB/2PAV₁)²/PA= (nB)²/(4P²AV₁)

where, nB is the number of moles of B.

To find the number of moles of B, we use the balanced chemical equation. 2 moles of B are produced for every mole of A that reacts. Since, the initial pressure of A was 1.19 atm and the equilibrium pressure of A was 0.20 atm, 0.99 atm of A has reacted.

Therefore, the number of moles of A that has reacted is:

nB = (0.99/1.19) = 0.8327 mol

The total number of moles of the system is the sum of the moles of A and B initially present in the reaction vessel.

nTotal = nA + nB

Initially, only A is present, so nTotal = nA = 1 mol. The number of moles of B is therefore:

nB = nTotal - nA = 1 - 0.8327 = 0.1673 mol

Substituting the values of PA, nB, and V1, we get:

Kp = (nB)²/(4P²AV1) = (0.1673)²/(4 × 1.19² × 1) = 0.0190

Therefore, the value of Kp for the reaction is 0.0190.

Learn more about Kp here:

https://brainly.com/question/30550192

#SPJ11

Which set correctly orders the atoms from HIGHEST to LOWEST ionization energy?

Answers

Answer:

Option D

Explanation:

Ionization energy increases left to right in a period and decreases top to bottom in a groups.

Ar is in Group 13

S is in Group 15

P is in Group 16

Al is in Group 18

They are all in the same period so decide by the group numbers if left is the highest (group 18) and right (group 13) is the lowest.

The order: Ar, S, P, Al

Hope this is clear. Good luck with chemistry! :)

many tests to distinguish aldehydes and ketones involve the addition of an oxidant. only choose... can be easily oxidized because there is choose... next to the carbonyl and oxidation does not require choose...

Answers

The tests to distinguish aldehydes and ketones involve the addition of an oxidant. This is because aldehydes can be easily oxidized because there is a hydrogen next to the carbonyl, and oxidation does not require a catalyst.

In general, aldehydes and ketones can be differentiated by the use of a wide range of chemical reagents. Tests for detecting these functional groups are usually based on their distinctive properties, such as the capacity to react with oxidizing agents or nucleophiles, which give different functional group products when they interact with aldehydes or ketones. Since these functional groups have differing properties, it is critical to employ distinct methods for their identification.

However, the use of oxidizing reagents to differentiate between aldehydes and ketones is one of the most frequent approaches. This is due to the presence of a hydrogen atom attached to the carbonyl group in aldehydes, which is readily oxidized by reagents such as Tollens' reagent (Ag2O/NH3) or Benedict's reagent (CuSO4 + NaOH). Hence, many tests to distinguish aldehydes and ketones involve the addition of an oxidant, this is because aldehydes can be easily oxidized because there is a hydrogen next to the carbonyl, and oxidation does not require a catalyst. Therefore, the third option is the only correct one.

Learn more about ketones at:

https://brainly.com/question/30665943

#SPJ11

If you have a solution of lead (II)nitrate and wish t prepare lead solid, what materials might you submerse into lead (II) nitrate solution? What is the half reaction involved?

Answers

To prepare lead solid, you would need to submerse a reducing agent such as aluminum or zinc into a solution of lead (II) nitrate. The half reaction involved is as follows:
Lead (II) Nitrate + Aluminum → Lead + Aluminum Nitrate

Explanation: 2Pb(NO3)2 + 2Al → 2Pb + 2Al(NO3)3
To prepare lead solid from a lead (II) nitrate solution, you can immerse a piece of solid zinc in the solution.What is Lead (II) nitrate?Lead (II) nitrate is a salt that is inorganic in nature. The salt is made up of one lead ion (Pb2+) and two nitrate ions (NO3-).The half reaction that is involved in this case is: Pb2+ + 2e- ⟶ PbThe above-mentioned reaction shows that the lead ions have been reduced to form lead solid.What is the process for immersing zinc into a lead (II) nitrate solution?When a piece of solid zinc is immersed in a solution of lead (II) nitrate, the following reaction takes place:Zn (s) + Pb(NO3)2 (aq) → Zn(NO3)2 (aq) + Pb (s)Solid lead gets produced as a result of the above reaction. The lead ions (Pb2+) in the lead nitrate solution get reduced to form solid lead when zinc is added to the solution.As a result, if you want to prepare lead solid from a lead (II) nitrate solution, you can immerse a piece of solid zinc in the solution. The half reaction involved is: Pb2+ + 2e- ⟶ Pb.

For more such questions on reducing agent

https://brainly.com/question/18370994

#SPJ11

you conducted a tlc experiment and found that your compound traveled 4.01 cm and the eluting solvent traveled 9.29 cm. what is the rf value for your compound? report your answer to two decimal places (i.e., 0.01).

Answers

the Rf value for your compound is 0.43.

The Rf value of a compound is the ratio of the distance that the compound traveled to the distance that the solvent traveled.

Therefore, in the given situation where you conducted a TLC experiment and found that your compound traveled 4.01 cm and the eluting solvent traveled 9.29 cm

The Rf value for your compound can be calculated as follows:

Rf value = Distance traveled by the compound / Distance traveled by the solvent

Rf value = 4.01 cm / 9.29 cm

Rf value = 0.43 (rounded off to two decimal places)

Therefore, the Rf value for your compound is 0.43.

To know more about Rf value click here:

https://brainly.com/question/17132198

#SPJ11

Identify each of the following statements as describing a chlorination reaction or a bromination reaction. Only ONE can be used for each.
A. Propagation step requires more engery.
B. enthalphy of the reaction is endothermic
C. halogenation yields more than one major product
D. carbon-halogen bond dissociation energy is higher
E. the enthalpy of the reaction is exothermic
F. the halogenation is selective

Answers

Answer :  A. Propagation step requires more energy : Chlorination reaction, B. Enthalpy of the reaction is endothermic :  Bromination reaction, C. Halogenation yields more than one major product : Chlorination reaction, D) Carbon-halogen bond dissociation energy is higher : Bromination reaction, E. The enthalpy of the reaction is exothermic : Bromination reaction, F. The halogenation is selective : Chlorination reaction



Propagation step requires more energy - This statement is describing a chlorination reaction because in a chlorination reaction, the propagation step (adding a chlorine atom to the reactant) requires more energy than the initiation step. B. Enthalpy of the reaction is endothermic - This statement is describing a bromination reaction because in a bromination reaction, the reaction enthalpy is endothermic.

This statement is describing a chlorination reaction. This statement is describing a bromination reaction because in a bromination reaction, the carbon-halogen bond dissociation energy is higher than in a chlorination reaction. This statement is describing a bromination reaction because in a bromination reaction, the reaction enthalpy is exothermic.

Know more about endothermic here:

https://brainly.com/question/23184814

#SPJ11

Identify the most and the least acidic compound in each of the following sets.
Leave the remaining answer in each set blank.
a) difluoroacetic acid: _______ fluoroacetic acid: _______ trifluoroacetic acid: _______
b) cyclohexanol: _______ phenol: _______ benzoic acid: _______
c) oxalic acid: _______ acetic acid: _______formic acid: _______

Answers

a) difluoroacetic acid: most acidic fluoroacetic acid: least acidic  trifluoroacetic acid : middle acidity. b) cyclohexanol: least acidic phenol: middle acidity benzoic acid: most acidic. c) oxalic acid: most acidic acetic acid: middle acidity formic acid: least acidic. Thus, the most acidic and least acidic compound in each set is identified as given above.

In the given question, we are given sets of compounds and we have to identify the most and the least acidic compound in each set. The acidic character of the compound depends upon its tendency to donate hydrogen ion. The compound that easily donates hydrogen ion is acidic in nature, while the compound that does not donate hydrogen ion easily is basic in nature.

The compound that donates hydrogen ion in a moderate way is neutral in nature.a) difluoroacetic acid: most acidic fluoroacetic acid: least acidic trifluoroacetic acid: middle acidity b) cyclohexanol: least acidic phenol: middle aciditybenzoic acid: most acidic.

Know more about cyclohexanol here:

https://brainly.com/question/7141113

#SPJ11

What is the name of this compound CH3CH(CH3)CH3

Answers

The Correct option is A, The IUPAC name of the compound CH3–CHCH3–CO–CH3 is 3-methyl-2-butanone.

In chemistry, a compound is a substance formed by the chemical combination of two or more different elements in fixed proportions. The atoms in a compound are held together by chemical bonds, which can be covalent, ionic, or metallic depending on the nature of the elements involved.

Compounds have unique physical and chemical properties that are different from their constituent elements. For example, water is a compound formed by the chemical combination of hydrogen and oxygen in a fixed ratio of 2:1 by mass. While hydrogen is a highly flammable gas and oxygen is necessary for combustion, water is a non-flammable liquid that is essential for life.

There are many different types of compounds, including organic and inorganic compounds. Organic compounds are those that contain carbon atoms, while inorganic compounds do not. Examples of organic compounds include sugars, proteins, and fats, while examples of inorganic compounds include salt, water, and carbon dioxide.

To learn more about Compound visit here:

brainly.com/question/19458442

#SPJ4

Complete Question:

The IUPAC name of the compound CH3–CHCH3–CO–CH3 is

A 3-methyl-2-butanone

B 2-methyl-3-butanone

C Isopropyl methyl ketone

D 2ethyl-2methyl pentane

Describe the parts of a lever. Include the following terms (fulcrum, resistance arm and effort arm).

Answers

Answer:

Explanation:

A lever is a simple machine that can be used to increase the force or distance of an applied effort. The three main parts of a lever are the fulcrum, resistance arm, and effort arm.

Fulcrum: The fulcrum is the pivot point or point of support on which the lever rests. It is the point around which the lever rotates or moves. The position of the fulcrum is important in determining the mechanical advantage of the lever.Resistance arm: The resistance arm is the part of the lever that extends from the fulcrum to the point where the resistance or load is applied. This is the part of the lever that must be moved in order to lift or move the load.Effort arm: The effort arm is the part of the lever that extends from the fulcrum to the point where the effort or force is applied. This is the part of the lever that the user pushes or pulls on in order to move the resistance arm and lift the load.

The mechanical advantage of a lever depends on the ratio of the length of the effort arm to the length of the resistance arm. A longer effort arm will require less force to lift a load, but will require more distance to be moved. Conversely, a shorter effort arm will require more force to lift a load, but will require less distance to be moved.

Rank the following elements by electron affinity, from most positive to most negative EA value. Rank from most positive to most negative. To rank items as equivalent, overlap them. (sodium, iodine, oxygen, arsenic, neon)

Answers

High electron affinity implies more easily accepts electrons because the increase in atomic size decrease the effective nuclear charge.

   O < I < Ar <  Na < Ne

The term Electron affinity is also designated as EA. It is defined as the change in energy of a neutral atom that is in the gaseous phase when an electron is added to the atom to form a negative ion. We can say the the neutral atom's likelihood of gaining an electron. It is the amount of energy released when an electron attaches to a neutral atom or molecule in the gaseous state to form an anion. We can simply say when an electron is added to the isolated gaseous atom energy is released that is more precisely known as the electron affinity. It is the energy required for the isolation of an electron from the singly charged gaseous negative ion.

To learn more about Electron Affinity

https://brainly.com/question/977718

#SPJ4

Which change to the experimental design would improve the reliability of the engineers' measurements?

ОА.

using a liquid other than water to determine porosity

ОВ.

using flasks instead of beakers

OC

testing single samples from more than three locations

OD

testing more samples from each location

Answers

Testing more samples from each location would improve the reliability of the engineers' measurements.

The correct option is D

By increasing the number of samples tested, the engineers can obtain a more accurate representation of the porosity of the material in question. This can help to account for any variation or outliers in the data, which can improve the reliability of the results. Using a different liquid or different containers may affect the results but may not necessarily improve reliability. Testing single samples from more than three locations may provide more information but may not necessarily improve reliability if the samples are not representative of the overall population.

To know more about reliability click here:

brainly.com/question/30154360

#SPJ4

an atom includes 8 electrons, 8 protons, and 8 neutrons. what is the mass of the atom?

Answers

Answer: 16

Explanation: Hence, the mass number of an oxygen atom = 8 + 8 = 16.

Write a Lewis structure that obeys the octet rule for the following species. Assign the formal charge for the central atom of. ClO3-If multiple resonance structures exist, use one that does not involve an expanded valence

Answers

The Lewis structure for ClO3- is as follows:

O

|

Cl--O

|

O-

To determine the formal charge of the central atom Cl, we need to calculate the valence electrons and nonbonding electrons present in ClO3-. Chlorine has 7 valence electrons, and each oxygen atom contributes 6 electrons for a total of 24 valence electrons. In this structure, there are 3 lone pairs on each oxygen atom and one Cl-O double bond.

The formal charge of Cl can be calculated as follows:

Formal charge = Valence electrons - Nonbonding electrons - 1/2 (bonding electrons)Formal charge of Cl = 7 - 6 - 4 = -3

The formal charge on the central atom, Cl, is -3. This indicates that Cl has an extra electron compared to its neutral state. The other oxygen atoms have a formal charge of -1 each, indicating that they have an extra electron as well. This arrangement of formal charges indicates that the ClO3- ion is a negatively charged species. The Lewis structure shows that ClO3- obeys the octet rule as each atom has a full outer shell of electrons.

To learn more about Lewis structure, here

https://brainly.com/question/20300458

#SPJ4

Subject: Earth Science

Explain the differences in structure and use for life between oxygen gas in the atmosphere and ozone.

(I would like a paragraph)

Answers

Answer:

The only difference is that ozone is made up of three oxygen atoms, while the stuff we breathe (molecular oxygen) is made up of only two atoms. Solar rays high in the atmosphere convert O2 to O3. In the upper atmosphere, rays from the Sun break a normal oxygen molecule into two separate oxygen atoms.

Cual es la formula de 4-etil-5-propil-3,4,7-trimetildecano

Answers

The chemical formula of 4- ethyl is C19H40.   This  patch is composed of an ethyl group( C2H5) attached to the fourth carbon  snippet( counting from one end) of a direct carbon chain.

It also has a propyl group( C3H7) attached to the fifth carbon  snippet of the same chain. The chain itself has 12 carbon  tittles and three methyl groups(- CH3) attached to the 3rd, 4th, and 7th carbon  tittles. thus, the complete name of the  emulsion is 4- ethyl, where" dodecane" refers to the 12- carbon chain.

This  patch belongs to the class of alkanes, which are hydrocarbons that only contain single bonds between carbon  tittles. The presence of the ethyl and propyl groups creates branching in the carbon chain, which can affect its physical and chemical  parcels compared to a direct alkane with the same number of carbon  tittles. The three methyl groups contribute to the  patch's overall shape and may also affect its reactivity.

Learn more about chemical formula at

https://brainly.com/question/12484831

#SPJ4

The question in english language is as follows:

What is the formula of 4-ethyl-5-propyl-3,4,7-trimethyldecane?

Other Questions
How would the soldiers die even when the enemy was not attacking Smoothie Activity 6. Using the relative frequency table, create a segmented bar graph by employee type using technology or by hand. If using Excel technology the columns may need to be switched after inserting the chart. Click on the chart and the "Chart Design" ribbon will pop up. Then select "Switch Row/Column." (10 points) show that v is an eigenvector of A and find the corresponding eigenvalue, .A= [\begin{ccc}-1&1\\6&0\end{array}\right], v = [\begin{ccc}1\\3\end{array}\right]=_____ Scallops and clams are both mollusks. A mollusk is a sea creature that has a hard shell but a soft body. Scallops and clams both feed by pulling water into their shells and sifting out tiny plants and animals. This food that floats by in the ocean is called plankton. The scallop lives on the ocean floor in shallow water. A clam makes its home by burrowing deep into sand and mud.Scallops and clams...They eat different kinds of food.They have different types of bodies.They have different ways of feeding.They make their homes in different places. Which one of the following types of electromagnetic radiation is produced by the sudden deceleration of high speed electrons?a.x-raysb.microwavesc.infrared radiationd.visible lighte.gamma rays HELP ASAP WILL GIVE BRAINLIEST!__________________ can lead to diffusion of responsibility, assuming others will behave in ways that are consistent with the crowd, but inconsistent with who you are as an individual. If P(A)=0. 3, P(B)=0. 2, and P(AB)=0. 1, find the probabilitya. P( )b. P(AB)c. P( B)d. P(A )e. P( B) Specter Consulting purchased $9,100 of supplies and paid cash immediately. Which of the following general journal entries will Specter Consulting make to record this transaction? Assume the company's policy is to initially record prepaid and unearned items in balance sheet accounts Multiple Choice Accounts Payable Supplies 9,100 9,100 Cash Supplies 9,100 9,100 Supplies Cash 9,100 9,100 Supplies Accounts Payable 9,100 9,100 Make a number line and mark the points that represent the following values of x. x=16please show with numberline for brainliest :) please help my class is tomorrow and im finishing homework Add the missing end of sentence punctuation and capital letters. There are 2 missing question marks, 1 missing full stop and 2 missing capital letters. Im going to play crazy golf tomorrow with Katrina do you want to play too I think were allowed up to five players. have you ever played crazy golf before I havent, but Ive got a feeling Im going to be good at it. For the following reaction, which of the reactants would be the acid? HNO2 ( aq ) + HS - ( aq ) NO2 - ( aq ) + H2S ( aq ) Select one:a.HS -b.H2Oc.NO2 -d.HNO2(Chem 2 Quiz 3.1) the procedure for making zeolite is carried out in an acidic medium. true or false If the board of regents of a major state university system plans to raise tuition in order toincrease revenues, the regents must believe student demand is- elastic.- inelastic.- of unitary elasticity.- perfectly elastic. instructors will use this tool in canvas to annotate submissions, provide robust feedback, and utilize a rubric for evaluating work and is called? A student placed a stuffed animal on the dashboard of a car. When the car accelerated quickly, the stuffed animal flew back onto the seat. Which principle BEST describes the motion of the stuffed animal as the car accelerated.inertiaspeedmomentumgravity Help with number 3 please The DNA sequence shown below comes from part of the TP53 gene. It encodes the last amino acids of the p53 protein, which is normally 393 amino acids long. The underlined codon indicates the correct reading frame of this gene. The lower strand of the gene is used as the template during the transcription of mRNA from this gene....TTCAAGACAGAAGGGCCTGACTCAGACTGACATTCTCC-3'...AAGTTCTGTCTTCCCGGACTGAGTCTGACTGTAAGAGG-5'A mutation that changes the nucleotide at position 25 from G to C results in which of the following: as soon as united parcel service (ups) moved into overnight delivery, fedex's strong point, fedex bought trucking and ground shipping assets to gain advantage over ups's strong point. these activities between ups and fedex are referred to as: Please answer fast I will be waiting please be fast What is the most important thing to remember when lifting weights?a. write down how much you are usingb. lift with a partnerc. put the weights back where you got themd. proper form and technique