Physical and chemical changes

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include melting, freezing, and dissolving.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. It involves making or breaking bonds between atoms. Examples include rusting, burning, and baking.

Front

Is dissolving sugar in water a physical or chemical change?

Back

Physical change.

Front

What happens to the chemical composition during a physical change?

Back

The chemical composition remains the same during a physical change.

Front

What happens to the chemical composition during a chemical change?

Back

The chemical composition changes, resulting in new substances.

Front

What is an example of a physical change?

Back

An example of a physical change is ice melting into water.

Front

What is an example of a chemical change?

Back

An example of a chemical change is the reaction of vinegar and baking soda to produce carbon dioxide.

Front

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

Back

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

Front

What is condensation in terms of physical change?

Back

Condensation is the process where water vapor turns into liquid water, which is a physical change.

Front

What type of change occurs when a candle burns?

Back

Chemical change.