Quiz about 4.2

Question 1

A phase change from liquid to gas is called ...

Accepted Answer

vaporization

Answer

condensation

Answer

sublimation

Answer

deposition

Question 2

Melting is a process that changes _____________________________.

Accepted Answer

solid to liquid

Answer

liquid to solid

Answer

liquid to gas

Answer

gas to liquid

Question 3

Which state change is shown in box 3?

Accepted Answer

deposition

Answer

condensation

Answer

vaporization

Answer

freezing

Question 4

Which state change is shown in box 4?

Accepted Answer

sublimation

Answer

deposition

Answer

condensation

Answer

vaporization

Question 5

Which state change is shown in box 5?

Accepted Answer

condensation

Answer

melting

Answer

vaporization

Answer

sublimation

Question 6

Melting occurs when you _______ thermal energy.

Accepted Answer

add

Answer

remove

Question 7

Condensation occurs when you _______ thermal energy.

Accepted Answer

remove

Answer

add

Question 8

Freezing occurs when you _______ thermal energy.

Accepted Answer

remove

Answer

add

Question 9

Vaporization occurs when you _______ thermal energy.

Accepted Answer

add

Answer

remove

Question 10

Sublimation occurs when you _______ thermal energy.

Accepted Answer

add

Answer

remove

Question 11

Deposition occurs when you _______ thermal energy.

Accepted Answer

remove

Answer

add

Question 12

When the temperature of matter decreases the particles...

Accepted Answer

slow down and move closer together

Answer

speed up and move closer

Answer

speed up and move farther apart

Answer

slow down and move farther apart

Question 13

What is the pH of a solution with a hydrogen ion concentration of $$4.2 imes 10^{-5}$$ M?

Accepted Answer

C) 4.38

Answer

A) 4.2

Answer

B) 5.4

Answer

D) 3.38

Question 14

In an experiment, a scientist measures the temperature change of a substance as it undergoes a phase change. If the initial temperature is $$4.2^ ext{o}C$$ and the final temperature is $$0^ ext{o}C$$ , what phase change is occurring?

Accepted Answer

B) Freezing

Answer

A) Melting

Answer

C) Vaporization

Answer

D) Condensation

Question 15

A chemical reaction has an equilibrium constant $$K_c = 4.2$$ at a certain temperature. What does this indicate about the reaction at equilibrium?

Accepted Answer

B) The products are favored

Answer

A) The reactants are favored

Answer

C) The reaction is at equilibrium

Answer

D) The reaction is not at equilibrium

4.2

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