What are geometric isomers?

Answers

Answer 1

Answer: each of two or more compounds that differ from each other in the arrangement of groups with respect to a double bond, ring, or other rigid structure.

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At standard pressure, how do the boiling point and the freezing point of NaCl(aq) compare to the boiling point and the freezing point of H2O(image)?

Answers

The boiling point of Sodium chloride(aq) is higher and the freezing point of Sodium chloride(aq) is lower.

What is the boiling point?

The boiling point is the temperature at which the pressure exerted by the surroundings upon a liquid is equal to the pressure exerted by the vapour of the liquid.

Usually, in this context, you would be referring to the boiling and freezing point of a Sodium chloride solution compared to pure H2O.

The boiling point of pure water is 100 degrees Celcius (212 Fahrenheit), and the freezing/melting point is below 0 degrees Celcius (32 Fahrenheit). For a solution, the boiling point is raised and the melting point is lowered.

This means that water will stay liquid for an increased range of temperature. Depending on the amount of Sodium chloride solute in the water, the boiling and melting points may change a few degrees.

Learn more about the boiling point here:

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Just had this multiple choice on my vacation packet the answer is the boiling point of NaCl(aq) is higher and the freezing point of NaCl(aq) is lower

Which law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pressure conditions?

Answers

$\boxed{{\text{Charles's law}}}$ states that volume occupied by a fixed quantity of a gas is directly proportional to the absolute temperature (Kelvin) at constant pressure.

Further Explanation:

Charles’s law:

Charles’s work showed that at constant pressure, the volume-temperature relationship for a fixed amount of gas is linear. In other words, Charles’s law can be stated that at constant pressure, the volume occupied by a fixed amount of a gas is directly proportional to its absolute temperature (Kelvin). This relationship is known as Charles’s law.

The mathematical representation of Charles’s law is,

${\mathbf{V}} \propto {\mathbf{T}}$ [P and n are constant]

Where,

V is volume occupied by the fixed quantity of gas.

T is the temperature of a gas.

P is the pressure of a gas.

n denotes the number of moles of gas.

The relationship can also be expressed as,

$\frac{{\mathbf{V}}}{{\mathbf{T}}}{\mathbf{ = constant}}$ [P and n are constant]

Or,

$\frac{{{{\mathbf{V}}_{\mathbf{1}}}}}{{{{\mathbf{T}}_{\mathbf{1}}}}}{\mathbf{ = }}\frac{{{{\mathbf{V}}_{\mathbf{2}}}}}{{{{\mathbf{T}}_{\mathbf{2}}}}}$ [P and n are constant]

Results of Charles’s law are as follows:

At constant pressure, if the volume of gas increases then the temperature also increases.

At constant pressure, if the volume of gas decreases then the temperature also decreases.

The volume (L) versus temperature (T) curve of Charles’s law is represented in the attached diagram.

Learn more:

1. Law of conservation of matter states: brainly.com/question/2190120

2. Calculation of volume of gas: brainly.com/question/3636135

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Ideal gas of equation

Keywords: Charles’s law, volume, temperature, pressure, volume temperature relationship, absolute temperature, constant pressure, relationship, V directly proportional to T, ideal gas, ideal gas equation number of moles, moles.

Charles's Law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pressure conditions

Further explanation

There are several gas equations in various processes:

1. The general ideal gas equation

PV = nRT

PV = NkT

N = number of gas particles

n = number of moles

R = gas constant (8,31.10 ^ 3 J / kmole K

k = Boltzmann constant (1,38.10 ^ -23)

n = = N / No

n = m / M

n = mole

No = Avogadro number (6.02.10 ^ 23)

m = mass

M = relative molecular mass

2. Avogadro's hypothesis

In the same temperature and pressure, in the same volume conditions, the gas contains the same number of molecules

So it applies: the ratio of gas volume will be equal to the ratio of gas moles

V1: V2 = n1: n2

2. Boyle's Law

At a fixed temperature, the gas volume is inversely proportional to the pressure applied

p1.V1 = p2.V2

3. Charles's Law

When the gas pressure is kept constant, the gas volume is proportional to the temperature

V1 / T1 = V2 / T2

4. Gay Lussac's Law

When the gas is heated in a tube whose volume does not change, the gas pressure in the tube is proportional to its absolute temperature

P1 / T1 = P2 / T2

5. Law of Boyle-Gay-Lussac

Combined with Boyle's law and Gay Lussac's law

P1.V1 / T1 = P2.V2 / T2

P1 = initial gas pressure (N / m2 or Pa)

V1 = initial gas volume (m3)

P2 = gas end pressure

V2 = the final volume of gas

T1 = initial gas temperature (K)

T2 = gas end temperature

So the correct answer is Charles' Law, where at constant pressure, the volume of gas will be inversely proportional to its temperature

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Identify all of the gas law equations that relate to the ideal gas law

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equation agrees with the ideal gas law

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The depictions of ionic compounds do not show distinct compound units but rather a collection of ions in the ratio given by the formula. Explain how the drawing of NaCl both illustrates that the compound exists as a large collection of ions and that the ratio of sodium ions to chloride ions is 1-to-1 as indicated by the formula NaCl.

Answers

Answer:

The ionic compound NaCl has a Face Centered Cubic unit cell

The site for atoms are Face, center and Edges corner.

Effective number of atoms

Na+

1centers + 12edges x $(1)/(4)$ = 4 Na+

Cl-

6face x $(1)/(2)$ + $(1)/(8)$ x8 corners = 4Cl-

This is just one unit cell effective atom, there are thousand's of such unit cells are combined to form one such structure of NaCl. The real formula of NaCl is Na4Cl4 but for simplicity we use empirical formula that is NaCl.

Which of the following is a secondary pollutant?A) sulfur dioxide
B) radon
C) carbon monoxide
D) sulfuric acid

Answers

Final answer:

A secondary pollutant is one that is not directly emitted but rather forms when primary pollutants react in the atmosphere. Among the options provided, sulfuric acid is a secondary pollutant. Correct option is D.

Explanation:

In the context of environmental science, a secondary pollutant is a type of pollutant that is not directly emitted. Instead, secondary pollutants are formed when primary pollutants undergo chemical reactions in the atmosphere. Among the options provided, option D) sulfuric acid is a secondary pollutant. The others - sulfur dioxide, radon and carbon monoxide - are primary pollutants, as they're emitted in this form from a source.

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If one ball with a momentum of 50 kg·m/s hits a ball at rest and no other forces are acting on either ball, what's the total momentum of both balls after the collision? A. 0 kg·m/s
B. 25 kg·m/s
C. 100 kg·m/s
D. 50 kg·m/s

Answers

Answer:

The answer is (D) 50 kg·m/s (PF Test)

2H₂O ----> 2H₂ + O₂How many moles of hydrogen are produced when 6.28 mol of oxygen form?

A.) 3.14 mol
B.) 6.28 mol
C.) 12.6 mol
D.) 25.2 mol

Answers

2 H2O ------------> 2 H2 + 1 O2

2 mol H2 ----> 1 mol O2
x mol H2 -----> 6.28 mol O2

x = 6.28 * 2

x ≈ 12.6 mol

answer C

hope this helps!.

6.28 mol O2* (2 mol H2/ 1 mol O2)= 12.6 mol H2

The correct answer is C. 12.6 mol~

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