Reversible/Nonreversible Changes

Front

What is a reversible change?

Back

A reversible change is a change that can be undone, allowing the original substance to return to its initial state.

Front

What is a nonreversible change?

Back

A nonreversible change is a change that cannot be undone, resulting in the formation of a new substance.

Front

What is a physical change?

Back

A physical change is a change in the appearance of matter without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change involves a transformation that alters the chemical composition of a substance, resulting in the formation of new substances.

Front

Give an example of a reversible change.

Back

Freezing water to make ice is an example of a reversible change.

Front

Give an example of a nonreversible change.

Back

Rusting of a nail is an example of a nonreversible change.

Front

What happens to the properties of a substance during a physical change?

Back

The properties of a substance may change in appearance, but its chemical composition remains the same.

Front

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

Back

The properties of a substance change as its chemical composition is altered, resulting in new substances.

Front

Is mixing cake batter a reversible or nonreversible change?

Back

Mixing cake batter is an example of a nonreversible change.

Front

What is an example of a physical change that can be reversed?

Back

Melting ice back into water is an example of a physical change that can be reversed.