Matter Unit Test #2

Front

What caused the change of a piece of iron from shiny to rusty?

Back

A chemical reaction.

Front

What is the process called when a solid changes to a liquid?

Back

Melting.

Front

Is a phase change a chemical or physical change?

Back

Physical.

Front

If a reaction starts with 20g of reactants, how much should it produce?

Back

A total of 20g of products.

Front

What does the Law of Conservation of Mass state?

Back

Mass cannot be created nor destroyed, it can only change form.

Front

What is matter?

Back

Anything that has mass and takes up space.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is an example of a chemical change?

Back

Rusting of iron.

Front

What happens during condensation?

Back

Gas turns into liquid.