Structures and Properties of Matter

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³).

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that becomes evident during a chemical reaction, such as flammability or reactivity.

Front

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

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is surface tension?

Back

Surface tension is the property of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules.

Front

What happens to gas volume when thermal energy is added at constant pressure?

Back

The volume of the gas increases.

Front

What are thermal energy and light in the context of combustion?

Back

Thermal energy is the heat produced during combustion, and light is the visible energy released.

Front

What is viscosity?

Back

Viscosity is a measure of a fluid's resistance to flow.

Front

What is the boiling point?

Back

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

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 chemical identity, such as color, mass, and volume.