ACP Midterm Review of Unit 1 (for 24-25)

Front

What is a chemical property?

Back

A characteristic of a substance that can only be observed during a chemical reaction, such as reactivity with acid.

Front

What is a physical property?

Back

A characteristic of a substance that can be observed without changing its chemical identity, such as boiling point.

Front

What indicates that a chemical reaction has occurred?

Back

Evidence includes the formation of a precipitate, color change, and temperature change.

Front

What is a chemical change?

Back

A process where one or more substances are transformed into different substances, indicated by changes in properties.

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

Example of a chemical property?

Back

Reactivity with oxygen, such as rusting of iron.

Front

Example of a physical property?

Back

Melting point, which is the temperature at which a solid becomes a liquid.

Front

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

Back

A physical change does not alter the chemical composition, while a chemical change results in new substances.

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What does color change indicate in a reaction?

Back

It can indicate that a chemical reaction has occurred, suggesting new substances have formed.