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ra1l [238]
4 years ago
9

At room temperature, the solubility of which solute in water would be most affected by a change in pressure?

Chemistry
2 answers:
Nezavi [6.7K]4 years ago
7 0

Answer:

Carbon dioxide

Explanation:

Carbon dioxide is a product derived from the reaction of different processes, such as: the combustion of coal and hydrocarbons, the fermentation of liquids and the breathing of humans and animals. It is also in low concentration in the Earth's atmosphere.

The carbon dioxide structure is made up of molecules of linear geometry and non-polar character. In addition, at room temperature, the carbon dioxide solubility would be affected if a pressure change occurred.

Bad White [126]4 years ago
4 0
<h3><u>Answer;</u></h3>

At room temperature, the solubility of which solute in water would be most affected by a change in pressure?

<h3><u>Explanation;</u></h3>
  • As the pressure on a gas confined above a liquid increases, the solubility of the gas increases in the liquid.
  • Carbon dioxide gas is most soluble in water under conditions of high pressure and low temperature.
  • The solubility of gases decreases with increasing temperature, so the air space inside the cylinder when cold water is used will be less compared to warm water.
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Which describes an atom of actinium?
Basile [38]

Answer:

Actinium is a chemical element with the symbol Ac and atomic number 89. A soft, silvery-white radioactive metal, actinium reacts rapidly with oxygen and moisture in air forming a white coating of actinium oxide that prevents further oxidation.

3 0
3 years ago
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The diameter of a sphere is 4 centimeters. Which represents the volume of the sphere?
pishuonlain [190]

Answer:

V=25.133 cm^3

(Is 4 the diameter you were given? To get one of those answers, I think you May have put the wrong diameter)

Explanation:

Radius is diameter/2

R=4/2

R=2

Volume of a sphere=4/3πr3

V=4/3π(2)3

V=25.133 cm^3

7 0
3 years ago
#1. Which statement is a correct expression of the Law of Conservation of Mass? A. The total mass is unpredictable in a chemical
Cerrena [4.2K]

These are two questions and two answers.

Question 1: Law of Conservation of Mass

Answer: option B. The total mass remains the same during a chemical reaction.

Explanation:

The law of conservation of mass is a universal law. It states that mass is mass is neither created or destroyed, but is is conserved.

In chemical reactions, that means that, always, the total mass of the reactants equals the total mass of the products or, as the option B. states, during a chemical reaction the total mass remains the same.

Since, in chemical reactions, the atoms are not modified (the atoms just bond in different form or with different atoms), that implies that total number of each kind of atoms in the reactants equals the total number of the same kind of atoms in the products.

That is the basis for balancing the chemical equations and for the stoicheometric calculations.

Question 2 . Which element(s) are not balanced in this equation?

Answer: option A. Only the Fe is unbalanced.

Explanation:

1) Given equation: Fe₂O₃ + 3 CO → Fe + 3 CO₂

2) Count the number of atoms of each kind on each side of the equation

i) Fe

reactant side: 2

product side: 1

Therefore, Fe is not balanced

ii) O

reactant side: 3 + 3 = 6

Product side: 3 × 2 = 6

Therefore, it is balanced

iii) C

reactant side: 3

product side: 3

Therefore, C is balanced.

3) Conclusion: Only the Fe is unbalanced.

7 0
3 years ago
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1)True or false
AlladinOne [14]
1) <span>Chemical reactions are always spontaneous when CHANGE IN H is negative and CHANGE IN S is negative</span>False


2)The driving force of a reaction is the change in kinetic energy.
True

3) In the reaction so2cl2 double arrows s02+cl2 heat is evolved. What happens when chlorine (Cl2) is added to the equilibrium mixture at constant volume?
b. The temperature of the system decreases.

4) In a reversible reaction, two substances are in equilibrium if the concentration of each increases by the same amount but the equilibrium constant remains unaffected.
True

5) A numerical value of the ratio of products to reactants, only at a specified temperature is called a(n)
b. equilibrium constant

6)At equilibrium,
a. all reactions have ceased.

7 0
3 years ago
When the reaction h3po4(aq) ca(oh)2(aq)→ occurs what is the formula for the salt formed?
Georgia [21]
2H3PO4 + 3Ca(OH)2 ➡ Ca3(PO4)2 + 6H2O.

Hence salt formed is Ca3(PO4)2.
Hope this helps, have a nice day!
7 0
3 years ago
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