Help please due today

Help Please Due Today

Answers

Answer 1

Answer:

It is a becaues i am a doctor and i know about that

Explanation:Just here to help


Related Questions

Suppose you have a mixture of copper sulfate (CuSO4) and azulene (C10H8, you may wish to know the structure of azulene). Both copper sulfate and azulene are beautiful deep blue cystalline solids. If you transferred the mixture to a separatory funnel containing both an aqueous and and organic solvents (1M HCl and dichloromethane), into which layer would the copper sulfate partition, aqueous or organic?
A. Aqueous layer (1 M HCI)
B. Organic layer (dichloromethane)
C. Copper sulfate would partition nearly equally into both the aqueous and organic layers

Answers

Answer:

Aqueous layer (1 M HCI)

Explanation:

First of us I want to remind you of the cliché in chemistry that like dissolves like. In solvent extraction, a mixture is dissolved in a system consisting of two immiscible solvents. One layer is organic while the other layer is aqueous.

Polar substances partition in the aqueous layer while nonpolar substances partition in the organic layer.

Since Copper sulfate is ionic, we will find it in the aqueous layer according to the old chemistry cliche.

what happens to water molecules when water vapor change to ice

Answers

Answer:

When the water vapor is cooled by the ice, the water molecules slow down more than in the cup without the ice. This allows their attractions to bring more molecules together to become liquid water.

BaCl2+Al(NO3)3=Ba(NO2)3+AlCl3

How many moles of barium nitrate are produced if 4.25 moles of aluminum nitrate are used in the reaction?

Answers

Answer:

6.75 moles of Ba(NO₃)₂.

Explanation:

The balanced equation for the reaction is given below:

3BaCl₂ + 2Al(NO₃)₃ —> 3Ba(NO₃)₂ + 2AlCl₃

From the balanced equation above,

2 moles of Al(NO₃)₃ reacted to produce 3 moles of Ba(NO₃)₂

Finally, we shall determine the number of mole of Ba(NO₃)₂ produced by the reaction of 4.25 moles of Al(NO₃)₃. This can be obtained as illustrated below:

From the balanced equation above,

2 moles of Al(NO₃)₃ reacted to produce 3 moles of Ba(NO₃)₂.

Therefore, 4.25 moles of Al(NO₃)₃ will react to produce = (4.50 × 3)/2 = 6.75 moles of Ba(NO₃)₂.

Thus, 6.75 moles of Ba(NO₃)₂ were obtained from the reaction.

Fluorine gas and water vapor react to form hydrogen fluoride gas and oxygen. What volume of oxygen would be produced by this reaction if "3.0" of water were consumed g

Answers

Answer:

[tex]V_{O2}= 1.5m^3[/tex]

Explanation:

From the question we are told that:

Volume of H_2O consumed [tex]V_{H2O}=3.0cm^3[/tex]

Balanced equation of Reaction is

[tex]2 F_2 + 2 H_2O -> 4 HF + O_2[/tex]

Therefore

O_2 produced in Volume is

 [tex]V_{O2}= \frac{1}{2}*V_{H2O}[/tex]

 [tex]V_{O2}= \frac{1}{2}*3.0m^3[/tex]

 [tex]V_{O2}= 1.5m^3[/tex]

difference between hygroscopic and deliquescent substance with of each​

Answers

Answer:

The water soluble substance which absorb moisture from the air and then dissolve on the absorbed moisture to change into liquid taste are called deliquescent substances whereas the substances which absorb moisture from air but do not change their state are called hygroscopic substances.

Answer:

Hygroscopic substances absorb moisture from the air but do not dissolve in it, whereas substance that undergo deliquescence dissolves in the water vapour that is absorbed from the air, forming a liquid solution

The number of moles of H in 5 moles of glucose (C6H1206) is

Answers

Answer:

60 mols hydrogen

Explanation:

1 mol of glucose contains 12 mols of Hydrogen

5 mols of glucose contains 12 * 5 = 60 moles of hydrogen.

One of the fastest ways to dissolve a solid in a liquid requires adding energy and exposing as much surface area of the solid as possible. Which of the following would be the quickest way to dissolve the largest possible amount of gelatin powder in a quart of water?
(1) Use cold water and stir it as the gelatin powder is added.
(2) Use hot water and stir it as the gelatin powder is added.
(3) Place the gelatin powder in a chilled container and pour lukewarm water over it.
(4) Place the gelatin powder in water that contains ice cubes.
(5) Place the gelatin powder and water at room temperature in a closed container and shake it.

Please help me.​

Answers

Place the gelatin powder in a chilled container and pour lukewarm water over it

Answer:

2

Explanation:

I think because the hot water would enable it to dissolve much faster as compared to cold water.its like when adding sugar to a cup of tea it would dissolve much faster in hot tea rather than cold tea

What is the specific heat of a substance if 373 J is required to raise the temperature of a 312 g sample by 15°C?

Answers

Answer:

0.080 J/g °C

General Formulas and Concepts:

Thermodynamics

Specific Heat Formula: q = mcΔT

q is heat (in J)m is mass (in g)c is specific heat (in J/g °C)ΔT is change in temperature (in °C)

Explanation:

Step 1: Define

[Given] q = 373 J

[Given] m = 312 g

[Given] ΔT = 15 °C

[Solve] c

Step 2: Find Specific Heat

Substitute in variables [Specific Heat Formula]:                                        373 J = (312 g)c(15 °C)Multiply:                                                                                                        373 J = (4680 g °C)cIsolate c:                                                                                                        c = 0.079701 J/g °C

Step 3: Check

Follow sig fig rules and round. We are given 2 sig figs as our lowest.

0.079701 J/g °C ≈ 0.080 J/g °C

Topic: AP Chemistry

Unit: Thermodynamics

Use dimensional analysis to solve the following problems. Pay attention to correct use of units and correct use of significant figures in calculations.

1) Convert 8.00 moles of aluminum to grams.

2) Convert 10.5 moles of aluminum chloride to grams.

Answers

Answer:

Solution given:

1:

1 mole of aluminum =26.98 gram

8 mole =26.98*8=215.84 gram

8.00 moles of aluminum =215.84grams.

2:

1 mole of aluminum chloride =133.34 grams

10.5 moles of aluminum chloride =133.34*10.5=1400.07 grams

10.5 moles of aluminum chloride =1400 grams.

#1

Molar mass of Al=27g/mol

1mol.of Al=27g

8mol of Al=27(8)=216g

#2

Molar mass of AlCl3=133.5g/mol

1 mol of AlCl3=133.5g

10.5mol.of AlCl3=10.5(133.5)=1401.75g

Fructose is an example of a ketohexose. The -hexose part of the name indicates that fructose is a Choose... that contains Choose... carbons. The keto- part of the name indicates that fructose contains Choose... functional group. Fructose can combine with glucose to form sucrose. Therefore, sucrose is a Choose... .

Answers

Answer:

carbohydrate, 6, a carbonyl, disaccharide

Explanation:

Fructose is an example of a ketohexose. The -hexose part of the name indicates that fructose is a carbohydrate that contains 6 carbons. There are more isomers that are ketohexoses.

The keto- part of the name indicates that fructose contains a carbonyl functional group. In ketones, the carbonyl is in an inner carbon.

Fructose can combine with glucose to form sucrose. Therefore, sucrose is a disaccharide. Disaccharides are formed by the bonding of 2 monosaccharides.

complete the following steps.
Remember to follow lower numbered rules first.
K2S(aq) + CO(NO3)2(aq) COS (?) + KNO3 (?)
a. Write a balanced chemical equation. (1 pt)
b. If a reaction occurs, write the balanced
chemical equation with the proper states of matter
(i.e. solid, liquid, aqueous) filled in. If no reaction
occurs, write “No reaction.” (1 pt)
c. If a reaction occurs, write the net ionic equatibn
for the reaction. If no reaction occurs, write “no
reaction.” (1 pt)

Answers

Answer:

See explanation

Explanation:

a) The balanced reaction equation is;

K2S + CO(NO3)2 ------> COS + 2 KNO3

b) When we include the states of matter, we have;

K2S(aq) + CO(NO3)2(aq) ----> COS(s) + 2 KNO3(aq)

c) The complete ionic equation is;

2K^+(aq) + S^2-(aq) + Co^2+(aq) + 2NO3^-(aq) ----> CoS(s) + 2K^+(aq) + 2NO3^-(aq)

Net ionic equation;

Co^2+(aq) + S^2-(aq) ----> CoS(s)

What is the direct function of the energy released from the nuclear chain reaction in a nuclear power plant? turning the blades of the turbine heating water to produce steam powering the condenser carrying electricity from the plant to consumers

Answers

Answer:

the energy released is to make steam to create electricity. yes you are right i just didnt feel like being super technical

In a nuclear reaction, the  direct function of the energy released from the nuclear chain reaction in a nuclear power plant is turning the blades of the turbine heating water to produce steam .

What are nuclear reactions?

There are two types of nuclear reactions which are nuclear fusion and nuclear fission .They involve the combination and disintegration of the element's nucleus respectively.

In nuclear fission, the nucleus of the atom is bombarded with electrons of low energy which splits the nucleus in to two parts .Large amount of energy is released in the process.It is used in nuclear power reactors as it produces large amount of energy.

In nuclear fusion,on the other hand, is a reaction which occurs when two or more atoms combine to form a heavy nucleus.Large amount of energy is released in the process which is greater than that of the energy which is released in nuclear fission process.

Learn more about nuclear reactions,here:

https://brainly.com/question/12786977

#SPJ7

Assuming tea leaves contain 5.0% caffeine by weight what is the maximum weight of caffeine you could isolate from 10.g of tea leaves? Show your work.

Answers

Answer:

0.50 g Caffeine

Explanation:

Step 1: Given data

Concentration of caffeine by weight in tea leaves: 5.0%

Mass of tea leaves: 10. g

Step 2: Calculate the maximum weight of caffeine that can be isolated

The concentration of caffeine by weight in tea leaves is 5.0%, that is, there are 5.0 g of caffeine per 100 g of tea leaves. The maximum weight of caffeine in 10. g of tea leaves is:

10. g Tea leaves × 5.0 g Caffeine/100 g Tea leaves = 0.50 g Caffeine

A gaseous mixture containing 7.00 moles of nitrogen, 2.50 moles of oxygen, and 0.500 mole of helium exerts a total pressure of 0.900 atm. What is the partial pressure of the nitrogen?

Answers

Answer:

Partial Pressure = 0.630atm

Explanation:

The total pressure of a mixture of gases is equal to the partial pressure of those gases. The partial pressure of a gas is defined as:

Partial pressure = Mole Fraction * Total pressure

The mole fraction of a gas is the ratio between the moles of the gas and the total moles.

To solve this question we need to find the mole fraction of nitrogen to find its partial pressure:

Mole Fraction nitrogen:

7.00 moles Nitrogen / (7.00moles N2 + 2.50moles O2 + 0.500moles He) = 0.700 = Mole fraction.

Partial Pressure = 0.700* 0.900atm

Partial Pressure = 0.630atm

Which group of carbohydrates is unique in that its members are strong anions, containing a significant concentration of carboxylate and sulfate

Answers

Answer:

The options are

A) Glycosaminoglycans

B) Gangliosides

C) Peptidoglycans

D) Proteoglycans

E) Selectins

The answer is A) Glycosaminoglycans

Glycosaminoglycans are polysaccharides which comprises of repetitive disaccharides. They are negatively charged as a result of the strong anions present. They are present in some cells of the body and they help in transmission of signals between cells etc.

They also comprise of carboxylate and sulfate groups in its structure.

Explain the term global warming​

Answers

Answer: A gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.

Explanation:

What type of intermolecular force exist between H2O and Br2

Answers

Answer:

welcome to mobile legends

Explanation:

ml ka muna maya kana mag module

What is the difference between acids and strong acids?
a. Strong acids produce all of their H30+ ions
b. Strong acids release all of their H30+ ions
c. Strong acids produce all of their OH- ions
d.Strong acids release all of their OH ions

Answers

Answer:

A and b are the both the answers

A gas occupies a volume of 202 ml at a pressure of 505 torr. To what pressure must the gas be subject in order to change the volume to 65.0 ml

Answers

Answer:

1569 torr

Explanation:

Assuming ideal behaviour and constant temperature, we can solve this problem by using Boyle's law, which states:

V₁P₁ = V₂P₂

Where in this case:

V₁ = 202 mLP₁ = 505 torrV₂ = 65.0 mLP₂ = ?

We input the data given by the problem:

202 mL * 505 torr = 65.0 mL * P₂

And solve for P₂:

P₂ = 1569 torr

Aluminum hydroxide is insoluble in pure water but dissolves in a solution of sodium hydroxide because: Select the correct answer below: hydroxide ions neutralize the Al3 ion, a Lewis acid aluminum participates in an acid-base reaction in the presence of sodium hydroxide the excess of hydroxide ions pushes the equilibrium toward further dissolution of Al(OH)3 aluminum forms a complex ion with excess hydroxide

Answers

Answer:

aluminum forms a complex ion with excess hydroxide

Explanation:

Complex formation accounts for the dissolution of certain compounds. For instance,reaction of aluminum and sodium hydroxide yields insoluble aluminum hydroxide as follows;

Al(s) + 3NaOH(aq) -----> Al(OH)3(s) +Na(s)

However, in excess NaOH, the solid aluminum hydroxide dissolves as due to the formation of a complex Al(OH)4^- in the solution.

which of these is not a gas? A. hydrogen B. gravity C. Oxygen D. heluim

Answers

Answer:

B. Gravity

Explanation:

Gravity is a force, not a gas :)

Answer:

B: Gravity

Explanation:

gravity pulls on the gad

Calcium carbonate reacts with stomach acid (HCI) according to the following equation:
Caco, (s) + 2 HCl(aq) - CaCl, (aq) + CO2(g) + H20 (1)
Tums, an antacid, contains CaCo3. If Tums is added to 25.7 mL of a 0.738 M HCl solution, how many grams of Co, are produced?

Answers

Answer:

0.418 g of CO₂ will be produced

Explanation:

Equation of the reaction is given below:

CaCO₃ (s) + 2HCl (aq) ----> CaCl₂(aq) + CO₂ (g) + H₂O (l)

From the equation of reaction , 1 mole of CaCO₃ reacts with 2 molemolesmof HCl to produce 1 mole of CO₂

Number of moles of HCl in 25.7 ml of a 0.738 M solution of HCl is obtained using the formula below:

Number of moles = molarity × volume (Litres)

Number of moles of HCl = 0.738 M × 25.7 mL × 1 L/1000 mL = 0.0190 moles

Since the antacid, Tums will be excess, the limiting reactant is HCl

2 moles of HCl produces 1 mole of CO₂

0.0190 moles of HCl will produce 0.0190 moles ÷ 2 = 0.0095 molesof CO₂

Mass of 0.0095 moles of CO₂ = Numbe of moles × molar mass of CO₂

Molar mass of CO₂ = 44.0 g/mol

Mass of CO₂ produced = 0.00950 moles × 44.0 g/mol = 0.418 g of CO₂

Therefore, 0.418 g of CO₂ will be produced if Tums is added to 25.7 mL of a 0.738 M HCl solution

The elemental mass percent composition of succinic acid is 40.68% C, 5.12% H, and 54.19% O. Determine the empirical formula of succinic acid. Express your answer as a chemical formula.

Answers

Answer:

C₂H₃O₂

Explanation:

To determine the empirical formula of succinic acid, we need to follow a series of steps.

Step 1: Divide each mass percent by the atomic mass of the element

C: 40.68/12.01 = 3.39

H: 5.12/1.01 = 5.07

O: 54.19/16.00 = 3.39

Step 2: Divide all the numbers by the smallest one, i.e. 3.39

C: 3.39/3.39 = 1

H: 5.07/3.39 ≈ 1.5

O: 3.39/3.39 = 1

Step 3: Multiply all the numbers by a factor that makes them all integers, i.e.  2

C: 1 × 2 = 2

H: 1.5 × 2 = 3

O: 1 × 2 = 2

The empirical formula of succinic acid is C₂H₃O₂.

Combustion of 5.024 mg of coniine yields 13.90 mg CO2 and 6.048 mg of H2O. What is the empirical formula for coniine, listing the elements in the order C, H, N?

Answers

Answer:

C8H17N

Explanation:

Number of moles of c

13.90 × 10^-3/44 g/mol × 1 = 0.000316 moles

Mass of C= 0.000316 moles × 12 = 0.00379 g

Number of moles of H

6.048 × 10^-3/18 × 2 = 0.000672 moles

Mass of H

0.000672 moles × 1 = 0.000672 g

Mass of N

0.005024 - [0.00379 g + 0.000672 g]

= 0.000562 g

Number of moles of N

0.000562 g/14 = 0.00004 moles

Divide through by the lowest ratio;

C= 0.000316/0.00004, H= 0.000672 /0.00004, N= 0.00004/0.00004

C= 8, H = 17, N = 1

Hence the empirical formula is;

C8H17N

Select the more electronegative element in this pair.
a. Cl F
b. O P
c. N C
d. Be Li

Answers

Answer:

a. F

b. O

c. N

d. Be

Explanation:

Electronegative is a periodic table for the elements which is stated by the Pauling number. EN helps us to state the type of bond which it can be covalent or ionic.

Fluroine is the most electronegative number of the periodic table.

In option A, F (4) is more EN than Cl (3.2)

EN is decreased from right to left in the periodic table (if we see periods) and increases, from bottom to top if we look at the groups

In option B, O (3.4) is more EN than P (2.2)

In option C, N (3) is more EN than C (2.6)

In Option D, Be (1.5) is more EN than Li (1)

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) 2-chlorobutanoic acid: _______ 4-chlorobutanoic acid: _______ 3-chlorobutanoic acid: _______ c) cyclohexanol: _______ phenol: _______ benzoic acid:

Answers

Explanation:

The given set of options are:

a) difluoroacetic acid: _______ fluoroacetic acid: _______ trifluoroacetic acid: _______

b) 2-chlorobutanoic acid: _______ 4-chlorobutanoic acid: _______ 3-chlorobutanoic acid: _______

c)cyclohexanol: _______ phenol: _______ benzoic acid:

A strong acid is one whose conjugate base is stabilized either by resonance or -I effect.

a) If -I groups are present on the carboxylic acid group then they stabilize the carboxylate anion (the conjugate base of the carboxylic acid) and give more strength to the carboxylic acid group. More the number of -I groups then more will be the strength of the carboxylic acid.

Among the given options,

Trifluoroacetic acid has three fluorine atoms in its structure thus it is a strong acid.

Fluoroacetic acid has only one fluorine atom in its structure. Hence it is the weak acid among the given options.

b) The -I groups should be nearer to the carboxylic acid group then it attains more stability.

If the distance of the -I group increases from the -COOH group then, the strength of the carboxylic acid group decreases.

So, the strongest acid is 2-chlorobutanoic acid.

The weak acid among them is 4-chlorobutanoic acid.

c) Among the given options benzoic acid is the strongest acid because due to resonance benzoate anion is stabilized more.

Here resonance exists in both phenyl group and [tex]-COO^-[/tex] group.

The weak acid is cyclohexanol.

Because cyclohexanolate anion is not stabilized by resonance.

Which has the greater amount of energy, the mixture of hydrogen and oxygen or the water?
Suggest a reason for your answer.

Answers

Answer:

water

Explanation:

because its molecular formula is H2O which clarify that, their is the two hydrogen element used in water meanwhile,

mixture of hydrogen and oxygen contain just one hydrogen element and only one oxygen element.

Calculate the concentration of ammonium nitrate in a solution prepared by dissolving 3.20 g of the salt in enough water to make 100. mL of solution, then diluting 2.00 mL of this solution to a volume of 25.00 mL.

Answers

Answer:

.032 M .

Explanation:

Molecular weight of ammonium nitrate is 80  .

3.2 g = 3.2 / 80 moles

= .04 moles

volume = 100 mL = 0.1 L

Molarity of 100 mL solution = .04 moles / 0.1 L

= 0.4 M solution.

Now 2 mL solution of 0.4 M is diluted to a volume of 25 mL .

Using the formula S₁ V₁ = S₂V₂

0.4 M x 2 mL = S₂ x 25 mL

S₂ = .4 x 2 / 25

= .032 M

Hence required concentration is .032 M .

A ligand is a molecule or ion that acts as a

Answers

Answer:

Lewis base/electron pair donors

Explanation:

Ligands are ions or neutral molecules which bond together with a central ion. They act as election pair donors, also known as Lewis bases, while the central ion they are connected to acts as the acceptor.

Therefore, a ligand is a molecule or ion that acts as a Lewis base/electron pair donors

Is sucrose classified as aldose or ketose?

Answers

Answer:

Because sucrose is a complex disaccharide, it is not classified as either an aldose or a ketone. Instead, it is a compound that contains both. glucose is aldose sugar and fructose is a ketose sugar.

Other Questions
A company purchased $1,800 of merchandise on July 5 with terms 2/10, n/30. On July 7, it returned $200 worth of merchandise. On July 28, it paid the full amount due. Assuming the company uses a perpetual inventory system, and records purchases using the gross method, the correct journal entry to record the merchandise return on July 7 is: find an equation of the line with an x intercept of -2 and a slope of 3I WILL GIVE BRAINLIEST PLEASE HELP On June 30, 2021, Moran Corporation issued $4 million of its 8% bonds for $3.5 million. The bonds were priced to yield 9.4%. The bonds are dated June 30, 2021. Interest is payable semiannually on December 31 and July 1. If the effective interest method is used, by how much should the bond discount be reduced for the six months ended December 31, 2021? a) $3,500. b) $4,500. c) $4,800. d) $9,000. Find the perimeter, in inches, of the parallelogram.A parallelogram is 5 inches wide, 15 inches long, and 4 inches high. which is the best paraphrase of the following quote? please put away all of your books and materials before leaving today, class remarked mrs leon.A.) Mrs. Leon asked the class to put away all of their books and materials before going to lunch.B.) the class told Mrs. Leon they would put away all of their books and materials before leaving C.) The class told Mrs. Leon they would put away all of their book and materials before going to lunch .D.) Mrs. Leon asked the class to put away all of their books and materials before leaving. A court decision that was applied to a previous case that is used to guide how to decide on a current issue is known as c. Assuming a fixed-priority scheduling. Consider two tasks to be executed periodically on a single processor, where task 1 has period p= 4 and task 2 has period p= 6. If execution time of task I be e;=1 Find the maximum value for the execution time e2 of task 2 such that the Rate Monotonic (RM) schedule is feasible. Donde esta juan? Juan fue a la tienda Isotopes (such as hydrogen-1, hydrogen-2, and hydrogen-3) are the atoms ofthe same element that differ in: Tristen is packing lunch boxes for the school trip. Each lunch box consists of 1 sandwich, 1 fruit, and 1 drink. Tristen can choose from 3 types of sandwiches, 4 types of fruit, and 2 types of drinks. How many different lunch boxes can Tristen pack?(question: is this a combination or a permutation?) 12. What are the risks when drug use involves injecting substances through a needle? The latest online craze is a new game,khan on seven. You get 100 points for playing the game. In addition,you get 50 points for each seven-letter word you make with the ten letter you receive.sal wants to break the record,and he needs 18,000 or more points to do so The following points are rotated about the origin through 90 in clockwise direction. Find the new coordinates,A. A(1,3), B(5,3), and C(3, 1)B. A' (3,-1), B'(-5, -3), and C (1.-3)C. A'(3,-1), B (3,-5), and C(1, -3)D. O A'(3, 1), B'(3,5), and C(1,3) i need to know this Write an introductory paragraph that clearly states your position on ratifying the Constitution, as a Federalist. Write a second paragraph that explains your point of view on how the government is set up under the Constitution. Write a third paragraph that explains your point of view on including of a bill of rights. Use at least one quote to support your argument. Be sure to explain what the quote means and how it connects to your point. Write a fourth paragraph to explain why you disagree with the opposing position. For example, if you are writing as a Federalist, you will explain why you disagree with the Anti-Federalist stance. Use at least one new quote to explain why it is not a valid point or how it supports your position. please help asap ive got bout a dayWrite a strong concluding paragraph that summarizes your argument and encourages others to support you. Write an equation for a function y=square root of x then shifted up 8 units help me please, i don't know this can someone help with these? ik the answers i just dont know how to show work Which of the following expressions are equivalent to -3x- 6/10Choose all that apply:A=3/6x1/10b=- 3/10x-6c= none of the above elucidate any 4 needs and importance of population education