TOMS Review: Changes in Matter

Front

Is frying an egg a physical or chemical change?

Back

Chemical change: A process where substances combine or break apart to form new substances.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements combine chemically.

Front

What happens in EVERY chemical change?

Back

A new substance is formed.

Front

What is formed when two or more elements combine chemically?

Back

A compound.

Front

What is CO2?

Back

CO2 is a compound made of carbon and oxygen.

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

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is the difference between a compound and a mixture?

Back

A compound is a chemical combination of elements, while a mixture is a physical combination of substances.

Front

What is an example of a chemical change?

Back

Burning wood, which produces ash and gases.