Chemical Reactions Activity 2 and 3 Flashcard

Front

What type of reaction is indicated by the disappearance of a solid that cannot be recovered by evaporating the liquid?

Back

Chemical reaction.

Front

What is the term for changing the state of matter from a liquid to a solid?

Back

Physical change.

Front

What type of change occurs when substances interact to form new substances?

Back

Chemical change.

Front

What type of change is dissolving sugar into water?

Back

Physical change.

Front

Which of the following is NOT an example of a chemical change: grinding up a sugar cube, a solid forming from 2 liquids, the release of heat, or a gas forming?

Back

Grinding up a sugar cube.

Front

What is a chemical reaction?

Back

A process where substances interact to form new substances.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

Give an example of a chemical change.

Back

Burning wood.

Front

Give an example of a physical change.

Back

Melting ice.

Front

What happens to the chemical composition of a substance during a chemical change?

Back

It changes to form new substances.