Chemical Changes

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances.

Front

What is evidence of a chemical reaction?

Back

Change in color, production of gas bubbles.

Front

Can most chemical changes be reversed?

Back

No, most chemical changes cannot be reversed.

Front

Is melting ice a chemical or physical change?

Back

Physical change.

Front

What happens when iron rusts?

Back

It undergoes a chemical change.

Front

What is a physical change?

Back

A change that does not alter the chemical composition of a substance.

Front

Give an example of a chemical change.

Back

Burning wood.

Front

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

Back

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

Front

What is an example of evidence of a physical change?

Back

Ice melting into water.

Front

What is a common indicator of a chemical reaction?

Back

Production of gas bubbles.