Physical and Chemical Properties and Changes

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in g/cm³.

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing its identity, such as color, density, or melting point.

Front

What is a chemical property?

Back

A chemical property is a characteristic that can only be observed during a chemical reaction, such as flammability or reactivity.

Front

What is the melting point?

Back

The melting point is the temperature at which a solid becomes a liquid.

Front

What is the boiling point?

Back

The boiling point is the temperature at which a liquid turns into a gas.

Front

Give an example of a physical change.

Back

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

Front

Give an example of a chemical change.

Back

An example of a chemical change is rust forming on iron.

Front

What is the difference between physical and chemical changes?

Back

Physical changes do not alter the chemical composition of a substance, while chemical changes do.

Front

What is the ability to burn an example of?

Back

The ability to burn is an example of a chemical property.