Physical and Chemical Properties and Changes Review

Front

What are chemical properties?

Back

Chemical properties are characteristics of a substance that can only be observed when it changes into a different substance.

Front

What happens during a chemical change?

Back

During a chemical change, one or more new substances are created.

Front

What are physical properties?

Back

Physical properties are characteristics that can be observed without changing the identity of the substance.

Front

What is a physical change?

Back

A physical change is a change where the characteristics do not change the substance.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of one or more new substances.

Front

Can you give an example of a chemical change?

Back

Toasting bread is an example of a chemical change, as it transforms the bread into a different substance (charred bread).

Front

Can you give an example of a physical change?

Back

Melting ice is an example of a physical change, as it changes from solid to liquid without altering its chemical identity.

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not alter the substance's identity, while chemical changes result in new substances being formed.

Front

What is an indicator of a chemical change?

Back

Indicators of a chemical change include color change, gas production, and the formation of a precipitate.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.