what is the difference between tertiary alcohol and tertiary compaund​

The chemical species in solution S2 Fe(s)+NiCl2(aq) → FeCl2(aq)+Ni(s)

Fe(s) ------> [tex]Fe^{2+}[/tex] + 2e                              (Oxidation)

[tex]Ni^{2+}[/tex] (aq) + 2e ------> Ni(s)                        (Reduction)

Galvanic Cell

Galvanic cells employ the electrical energy generated by the transport of electrons during a redox reaction to carry out practical electrical work. By separating the oxidation and reduction half-reactions and connecting them with a wire so that the electrons must pass through the wire, it is possible to gather the electron flow.

Write a balanced equation for the half-reaction that happens at the cathode of this cell = Ni (aq) + 2e ------> Ni(s)

Write a balanced equation for the half-reaction that happens at the anode of this cell = Fe(s) ------> [tex]Fe^{2+}[/tex] + 2e.

Of what substance is E1 made? = Fe

of what substance is E2 made? = Ni

What are the chemical species in solution S1? = [tex]Fe^{2+}[/tex]

What are the chemical species in solution S2? = [tex]Ni^{2+}[/tex]

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According to the given statement 5 °C temperature change is observed.

The variation in heat is measured by a calorimeter. A metal water container placed above an exhaust gases serves as the basic component of a calorimeter. The amount of water's temperature change is measured using a thermometer.

The calorimeter burns a 1.221g sample.

The calorimeter contains 1.240 kg of water .

The calorimeter has a heat capacity of 1365 j/°C.

∆H rxn = -3227 kj/mol of benzoic acid

Given: 1.221 g is the mass of the benzoic acid

Benzoic acid's molecular weight is 122.12 g/mol.

122.12 g benzoic acid = 1 mol

1.221 g benzoic acid =1.221/122.12= 0.0099 moles

When burned, 1 mol of benzoic acid releases 3227 kj of energy.

Burning 0.0099 moles of benzoic acid produces energy

= 3227kj×(0.0099mols)/1 mol =32.2647 kj =32264.7 j

The calorimeter absorbed thermal energy

= 1365 j/C ×T

Water absorbs heat

= m× C× T

= 1240 g( 4.18 j/gC ) ×T

= 5183.2j/C×T

the total amount of heat absorbed

= 1365T + 5183.2T

=6548.2T

6548.2T=32264.7

T= 4.92 deg.C

T= 5 °C

The result is a 5 °C temperature change.

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Zinc reacts with hydrochloric acid is the correct observation of a chemical property and the right response to the question above.

Equation:

Zn +2HCL  →    ZnCl2 +H2

Balanced equation:  

 Zn +2HCL  →     ZnCl2 +H2

Atomic number 30 and the letter Zn identify zinc as a chemical element. When the oxidation is eliminated, zinc becomes shiny-greyish and becomes a somewhat brittle metal at normal temperature.

Zinc is a crucial trace element for all living things, including humans, animals, plants, and microbes. After iron, it is the trace metal found in humans in the second-highest concentration. As a crucial cofactor for several enzymes, zinc is also a crucial vitamin for development. Many disorders can be caused by a zinc shortage. slowing in growth, infection susceptibility, and diarrhea are among effects of deficiency in children. . Consuming too much zinc can result in copper shortage, ataxia, and sluggishness.

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Answer:

Metals react with water to form oxides or hydroxides and release Hydrogen gas

Explanation:

the overall balanced cell reaction for the following voltaic cell

Hg2Cl2(s) + Cu(s) ® 2Hg(l) + Cu2+(aq) + 2Cl-(aq)

The cell reaction, also known as the total reaction, is the reaction that occurs within the cell as a whole and is expressed under the assumption that the right electrode is the cathode and that the spontaneous reaction is the one in which reduction takes place in the right-hand compartment.Galvanic, also known as Voltaic, and electrolytic cells are the two varieties of electrochemical cells. While electrolytic cells utilize non-spontaneous reactions and therefore need an external electron source, such as a DC battery or an AC power source, galvanic cells get their energy from spontaneous redox reactions.

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A short circuit can cause ​giant spark ,because there is nothing in the circuit to limit the current and absorb the electrical energy. Heat builds up quickly in the wire and power supply. (Lesson 4.05) an explosion a release of harmful chemicals a fire All of the above

What is Circuit?

The point where the electrons enter the electrical circuit is known as the source, and the point where they depart is known as the return. Let's do a little experiment; you'll require the following:

Electrical tape, wire, and electric bulbs

power source

Only when there is at least one closed loop running from the positive to the negative end of the circuit is it considered complete. This is the most basic type of electrical circuit. A television's internal circuit is more intricate and made up of several parts

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Answer: True. Voltaic cells, also known as galvanic cells, are able to provide energy in the form of electricity because the potentials of their redox reactions permit electrons to flow spontaneously. Redox reactions involve the transfer of electrons from one species to another, and the flow of electrons through a circuit can be used to do work, such as powering an electric motor or a lightbulb. The potential difference between the two half-cells in a voltaic cell is called the cell potential, and it determines the direction and magnitude of the flow of electrons.

Explanation:

8 hours  is the half-life of the radioactive iodine. The entire body is exposed to radiation risks from gamma rays. They can swiftly get through defences that alpha and beta particles can stop.

Like skin and clothing. Because of their powerful penetrating power, gamma rays may require several inches of a heavy substance, like lead, or even several feet of concrete, to be stopped. During radioactive decay, an atom's nucleus may emit gamma rays. They can easily penetrate the human body and travel tens of yards or more through the air. It takes a radioactive heavy, dense material, such several inches of lead or concrete, to shield this particularly penetrating form of ionising radiation.

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Answer:

In individuals with asthma, the airways (bronchial tubes) that carry air in and out of the lungs become narrowed, swollen, and inflamed due to an overactive immune response. This can lead to difficulty breathing, wheezing, coughing, and other symptoms.

During an asthma attack, the muscles around the airways may become tight and the lining of the airways may produce excessive mucus, further narrowing the airways and making it difficult for oxygen to reach the cells in the body. This can lead to low oxygen levels in the blood and cause symptoms such as shortness of breath and chest tightness.

In addition to these physical changes in the airways, individuals with asthma may also have an overactive immune response to certain triggers, such as allergens or irritants, which can further worsen inflammation and airway narrowing.

Treatment for asthma typically involves using medications to control inflammation and relax the muscles around the airways, as well as avoiding triggers that can worsen symptoms. By properly managing their asthma, individuals with the condition can often lead normal, active lives.

Explanation:

The tubes that carry air into and out of the lungs become irritated and constricted in people with asthma. This can make it difficult for air to enter and exit the lungs, which can cause symptoms including coughing, wheezing, and breathing problems.

Being less able to enter the lungs and reach the body's cells is one-way oxygen molecules can interact differently with the systems and cells in people with asthma. It is more difficult for oxygen to enter the lungs when the airways are constricted, which can result in a reduction in the amount of oxygen reaching the body's cells. This may cause symptoms including trouble breathing and difficulty engaging in physical activity.

In people with asthma, oxygen molecules can also affect the cells and systems in different ways by inducing an immunological reaction. When allergens or pollutants are breathed by asthmatic patients, their immune systems may be overly sensitive to them and may respond inappropriately. This may result in the release of inflammatory substances, which may further constrict the airways and hinder the absorption of oxygen by the lungs.

Inflammation and immune system overactivity can generally disrupt how oxygen molecules interact with the body's processes and cells in people with asthma, which can cause breathing problems and other symptoms.

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Answer:Co2O3

Explanation:

look it up

Answer:

Co2O3

Explanation:

when you write any formula you apply the criss-cross method where you write the charges of each substance

Co3 and O2

applying the criss-cross method( you switch the charges number, in this case you switch the 2 and the 3) :-

Co2 and O3

so Co2O3

A well-known NMR technique called diffusion ordered spectroscopy (DOSY) provides diffusion coefficients for specific resonances in NMR spectra.

The main applications of DOSY are the analysis of small molecule mixtures and the oligomeric state of biomolecules. The spreading Self-Diffusion (SD)-NMR and diffusion ordered spectroscopy are two common names for the NMR technology (DOSY). This is accomplished by fusing magnetic field gradients, which encode spatial information, with radio-frequency pulses, which are commonly employed in NMR spectroscopy. Magnetic field gradients are used by Diffusion Ordered Spectroscopy (DOSY) to examine diffusion processes in both solid and liquid materials. Liquid structure is discovered using NMR spectroscopy. It is also used to figure out how soluble chemical molecules are structured.

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Label for each of the compounds given in the question are: 1) Isomer, 2) Isomer, 3) Resonance Structure, 4) Isomer 5) Neither.

A group of two or more Lewis structures known as resonance structures describe the electronic bonding of a single polyatomic species, including fractional bonds and fractional charges. The number of electrons in resonance structures should be constant; do not add or subtract any electrons. (Count the electrons to determine their number). Every resonance structure complies with the standards for writing Lewis Structures. Structure hybridization must be constant. By cyclically moving elections, it is possible to depict the two resonance configurations of the benzene ring. Multiple resonance structures can be found in conjugated double bonds.

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Specific heat capacity of a substance is the amount of heat required to raise the temperature by one degree Celsius of one gram of a substance. Therefore, the total enthalpy of the given reaction is -781.44KJ.

Enthalpy term is basically used in thermodynamics to show the overall energy that a matter have. Mathematically, Enthalpy is directly proportional to specific heat capacity of a substances.

Mathematically,

q = n ×ΔH

where

q = amount of heat

n = no of moles

ΔH = enthalpy

n = w / M.M

w = given mass

M.M = molar mass

4CH[tex]_3[/tex]NH[tex]_2[/tex]+2H[tex]_2[/tex]O[tex]\rightarrow[/tex]3CH[tex]_4[/tex]+CO[tex]_2[/tex]+4NH[tex]_3[/tex]   ΔH=-138.8KJ

number of moles of methyl amine=175/31.06

                                                       =5.63moles

enthalpy for reaction of one mole of methyl amine=-138.8KJ

enthalpy for reaction of 5.63 mole of methyl amine=-138.8KJ×5.63

                                                                                     =-781.44KJ

Therefore, the total enthalpy of the given reaction is -781.44KJ.

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Based o the percentage masses of the elements, the empirical formula of epinephrine is C₉H₁₃O₃N.

The empirical formula of epinephrine is calculated below as follow:

Mole ratio of the elements are determined:

Carbon = 59% / 12

Carbon = 0.049 moles

Hydrogen = 7.1% / 1

Hydrogen = 0.07 moles

Oxygen = 26.2% / 16

Oxygen = 0.016

Nitrogen = 7.7% / 14

Nitrogen = 0.0055

The simplest whole-number ratio will be:

C = 0.049/0.0055

C = 9

Hydrogen = 0.07/0.0055

H = 13

Oxygen = 0.016/0.0055

Oxygen = 3

Nitrogen = 0.0055/0.0055

Nitrogen = 1

The empirical formula = C₉H₁₃O₃N

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The diagrams of zonation in lakes and oceans with correct targets are :

a) fresh plant may be rooted here

b) littoral zone

c) limnetic zone

d) alternately dry and submerged

e) extends to edge of the continental shelf

f) generally low nutrient levels

g) light penetrates here

h) no photosynthesis occurs here

i) benthic zone

There are zones which divided the lakes. they are separated by the water from the top to bottom and the side to the side. that is named as : the littoral zone , the limnetic zone, the profundal zone , the benthic zone and the euphotic zone . the waters temperature will be affected the density. there are several zones in the ponds and the lakes. these are dived by the water column.

The limnology divides the lakes in the three types of zones ., that is the limnetic zone, the littoral zone and the benthic zone.

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If the reaction is exothermic as described, a rise in temperature will thus trigger the opposite reaction, which will result in a decrease in the amount of the products and an increase in the number of reactants. The reverse outcome will occur if the temperature is lowered.

B. The concentration of the products increases.

A reaction is defined as exothermic if the overall standard enthalpy change (H) is negative. Exothermic processes typically produce heat. Exergonic reaction, which the IUPAC defines as "... a reaction for which the overall standard Gibbs energy change G is negative," is frequently mistaken with the phrase.

Because "H" contributes significantly to "G," a strongly exothermic process is typically also exergonic. Exothermic and exergonic chemical reactions make up the majority of the impressive demonstrations in schools.

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Since CH3CH2CH2NH2 may form intermolecular hydrogen bonds, it has a higher boiling point than other compounds. The hydrogen atoms in (CH3)3N (C H 3) 3 N are joined to the carbon atoms.

Since carbon is not a particularly electronegative atom, it cannot donate hydrogen. There aren't any hydrogen atoms to accept, despite the fact that nitrogen is a strong hydrogen atoms. As a result, CH3CH2CH2CH3 is a nonpolar molecular complex in which induced dipole forces are the only intermolecular forces. When both the donor atom, D, and the acceptor atom, A, are among the highly electronegative elements O, N, or F, hydrogen bonding occurs, as shown by the symbol D-H—-A.

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The decomposition of H2O2 is represented by the equation above. the reaction us thermodynamically favorable 4H₂O₂ → 4H₂O + 2O₂

The following diagram illustrates how hydrogen peroxide decomposes chemically;

2H₂O₂ → 2H₂O + O₂

As a result, one oxygen molecule and two water molecules result from the breakdown of two hydrogen peroxide molecules.

Numerous chemical substances spontaneously react with molecular oxygen to produce peroxides in the form of free radicals.

Given that there are four hydrogen peroxide molecules breaking down in the diagram, we have;

4H₂O₂ → 4H₂O + 2O₂

The results of the breakdown of the four molecules of hydrogen peroxide are depicted in the accompanying diagram.

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Choloracetic acid, 12 g. The colorless solution of the white crystalline substance known as chloroacetic acid.

Up to 80% of the solution can be acidic. By inhalation, ingestion, and skin contact, it is poisonous. It corrodes flesh and metals.

The equilibrium of the buffer is

CH2ClCO2 + H+ HCH2ClCO2

PKA = Log Ka

Ka: [CH2ClCO2] = 1,3 x 103. "H+" / "HCH2ClCO2"

Using the Henderson-Hasselbalch formula:

pH equals pka plus log10 [A]/[HA].

2,89 + log10 [A] / [HA] = 3,01

1,318 = [A⁻] / [HA]

Since chloroacetic acid (HA) has a molar concentration of 0,20M

[A⁻] = 0,26 mol/L

There are 500 mL plus 0.5 L.

Chloroacetic acid is equal to 0,26 mol/L x 0,5 l, or 0,13 moles. By weight:

Choloracetic acid is equal to 0,13 mol (94,5g / 1mol) = 12 g.

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As per the given balanced reaction, one mole or 63.5 g of Cu produces 2 moles or 215.6 g of silver metal. Hence, 5 g of copper produces16.9 g of Ag.

A displacement reaction is a type of reaction, in which one element or group of the reactant is displaced by the attacking group or element. The reaction between copper and silver nitrate is an example of single displacement reaction.

Given the balanced equation  of the reaction. One mole of Cu produces 2 moles of Ag.

atomic mass of Cu = 63.5 g/mol

atomic mass of Ag = 107.8 g/mol

mass 2 moles of Ag = 2 × 107.8 =215.6 g.

Hence, 63.5 g of Cu produces 215.6 g of Ag.

The mass of Ag produced by 5 g of Cu is calculated as follows:

mass of Ag = (5 × 215.6 g) /63.5 g = 16.9 g

Therefore, the mass of silver precipitated will be 16.9 g.

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In a gas chromatogram, the retention time of compounds A and B are 1.25 min and 1.45 min, respectively. If both of these compounds have similar structures, Compound A has a higher boiling point.

Gas chromatogram is a widely used technique in analytical chemistry for the separation and investigation of compounds that may evaporate without disintegrating (GC). The purity of a substance can be assessed by GC, as can the components of a mixture. Preparative chromatography can make use of GC to separate pure compounds from a mixture. Other names for gas chromatography include vapor-phase chromatography (VPC) and gas-liquid partition chromatography (GLPC). These alternative names and the accompanying acronyms are frequently used in scientific literature. Gas chromatography is a technique for separating compounds in mixtures by injecting a gaseous or liquid sample into a mobile phase, which is usually referred to as the carrier gas, and passing the gas through a stationary phase. The mobile phase is often composed of an inert gas or an unreactive gas, such as helium, argon, nitrogen, or hydrogen. The stationary phase is a minuscule layer of viscous liquid on a surface of solid particles on an inert solid support in a piece of glass or metal tubing known as a column.

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A ring of C3H5 makes up the structure of a chemical with the empirical formula C5H8O that passes the iodoform test and does not discolor permanganate.

C5H8O → 1/2 (C5H12-C5H8) = 1/2(4)=2 carbons CH3C=O

No C=C after a negative permanganate test

Has a C=O bond

Methyl ketone as it tested positive for iodoform

C3H5 = ring

A cyclopropyl group is a chemical structure produced from cyclopropane that may take part in cycloadditions and rearrangements of cyclopropane in organic processes. The group contains a chemical link from each of the three carbons to both of the other two, and its empirical formula is C3H5.

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Combustion of 31.68 g of a compound containing only carbon, hydrogen, and oxygen produces 36.67 g CO₂ and 15.01 g H₂O. the empirical formula of the compound is CH₂O.

given that :

mass of CO₂ = 36.67 g

mass of H₂O = 15.01 g

total mass of compound = 31.68 g

moles of CO₂ = 36.67 / 44

                       = 0.833 mol

moles of C = 0.833 mol

moles of  H₂O = 15.01 / 18

                        = 0.833 mol

moles of H = 2(0.833)

                  = 1.667 mol

mass of carbon = 0.833 × 12

                           = 10 g

mass of hydrogen = 1.667 × 1

                               = 1.667 g

mass of oxygen = 31.68 - ( 10 + 1.67 )

                             = 20 g

moles of Oxygen = 20 / 16

                             = 1.25 mol

dividing by the smallest one :

C = 0.833 / 0.833 = 1

H = 2

O = 1

The empirical formula is CH₂O.

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Answer:CH

3

​

CH

2

​

CH

2

​

C≡C−CH

3

​

Explanation:

Atomic number of Technetium is 43, Mass number is 99  and symbol is Tc ,hence symbol of isotope is  99 m43 Tc

General representation of atom is AZ X

Where ,  A is mass number , Z is atomic number and X is symbol of element. Atomic number of Technetium is 43, Mass number is 99  and symbol is Tc ,hence symbol of isotope is  99 m43 Tc ,Where m stands for meta stable.

A chemical element with the atomic number 43 and the symbol Tc is known as technetium. It is the lightest element whose radioactive isotopes are all present. Technetium is a synthetic element that is created in abundance. The most prevalent source of naturally occurring technetium is uranium and thorium ores, where it spontaneously fissions as a byproduct, while molybdenum ores produce it as a byproduct of neutron capture. This crystalline, silvery-gray transition metal in group 7 of the periodic table is sandwiched between rhenium and manganese, and its chemical characteristics fall somewhere in the middle of the two nearby elements. Only in traces, 99Tc is the most prevalent naturally occurring isotope.

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Acid concentration: 0.49 M KOH concentration is 0.49 MKa1=1.0 x 104 eq. rm

a remedy for Take the example of titrating 100 mL of 0.100 M HOCl with 0.100 M KOH at 25 °C. HOCl has a Ka of 3.5 10-8. Calculate the pH after 0.0 mL of KOH in Part 1.

Consider titrating 0.115 M RbOH in a 25.0 mL sample with 0.100 M HCl. Figure out each quantity. The initial pH and the amount of acid that must be added to achieve the equivalence point are also factors. c. the pH after adding 5.0 mL of acid. pH at the equivalency point (d). e. the pH following the addition of 5.0 mL of acid over the equivalency point.

Think about titrating 100 mL of 0.59 M H 3 a 1-3 a2-6 a3. 1) Determine the pH following

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To solve such we need to have concept of spontaneity. The terms "feasible" and "likely" are both used to describe spontaneous processes. Therefore, second reaction will occur spontaneously.

The word "spontaneity" refers to a process's viability. A process is referred to as spontaneous if it can occur either on its own or as the result of some initiation under a certain set of circumstances. In other terms, a spontaneous process is one that may happen on its own, without any outside intervention.

For a reaction to be spontaneous, the value for ΔG should be negative and for that cell potential should be positive value according to following equation.

ΔG=-nFE

ΔG = Gibbs's free energy

E= cell potential

F= 96500

n= number of electron

Therefore, second reaction will occur spontaneously.

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D ) The answer that best depicts the diagnostic cleavage that is typical of the mica group of minerals which include muscovite and bietet is a single, planar cleavage .

Cleavage is the splitting of minerals along natural planes of weakness

When there is only one cleavage plane, a single, planar cleavage known as the basal or pinacoidal cleavage takes place. cleaved at the base of the graphite. Mica (like muscovite or biotite) has basal cleavage, that's why mica can be peeled into thin sheets.

So single planar cleavage is answer of this question.

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The Solubility Of Fe(OH)₂ In Water At 25 °C Is Measured To Be 5.2x 10⁻⁴ Fe(OH)₂ Ksp value is 5.6 × 10⁻¹⁰.

The chemical reaction is given as follows :

Fe(OH)₂ ⇄  Fe²⁺    +   2OH⁻

Ksp expression for the given reaction is given as follows :

Ksp = [Fe²⁺] [OH⁻]²

the solubilty S =  5.2x 10⁻⁴

so , the Ksp = S × (2S)²

                    = 4S³

Ksp = 4 ×S³

      = 4 × (  5.2x 10⁻⁴ )³

      = 4 × 140.6 × 10⁻¹²

      = 5.6 × 10⁻¹⁰

The solubility product value for Fe(OH)₂   that is Ksp value is 5.6 × 10⁻¹⁰.

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The reaction is given :    ²³⁴Pa₉₁  ----->   X  +   ⁰e₋₁ , the equation is balanced and the nucleus represented by X is ²³⁴U₉₂.

The balanced reaction is given as :

²³⁴Pa₉₁  ----->   X  +   ⁰e₋₁

This reaction is the balanced reaction and X is represented the nucleus and is given as :  ²³⁴U₉₂.

The given reaction is the nuclear reaction. the nuclear reaction is the reaction in which the nuclides are produced by the collision between the two atoms nuclei. the nuclear reaction are of the two types the nuclear fission and the nuclear fusion reaction. the nuclear fission is the splitting of the large nuclei in to the smaller ones.

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