Chemistry Quiz

What happens to particles in a solid when heat is added or removed?

• They move from a fixed arrangement to no fixed arrangement

• They stay in a fixed arrangement and do not move

• They evaporate immediately

• They expand and fill the container

Which of the following is a physical change?

• Rusting

• Digestion

• Melting

• Combustion

What is the process called when a gas changes into a liquid?

• Evaporation

• Condensation

• Sublimation

• Deposition

Which of the following is NOT a sign of a chemical change?

• Change in color

• Change in shape

• Gas or bubbles forming

• Burning

What is a mixture?

• A new substance formed by a chemical change

• A collection of substances not joined together and easily separated

• A substance that cannot be reversed once formed

• A change in the state of matter that alters identity

What is the primary difference between a compound and a mixture?

• A compound is chemically bonded and a mixture is not

• A mixture is always liquid, while a compound is solid

• Compounds can be separated by physical means, mixtures cannot

• Mixtures are chemically bonded and compounds are not

What is the term for a solid changing directly into a gas?

• Condensation

• Deposition

• Sublimation

• Evaporation

Which of the following is a chemical change?

• Boiling water

• Dissolving sugar in water

• Burning wood

• Freezing water

What is the result of dissolving salt in water?

• A chemical change resulting in a new substance

• A physical change where salt can be recovered by evaporation

• The salt immediately reacts and releases gas

• The water freezes due to the salt

Which state of matter has a definite volume but no definite shape?

• Solid

• Liquid

• Gas

• Plasma