Chemistry Test Review

Front

What is density?

Back

Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

True or False: The density of a specific type of material never changes.

Back

True

Front

What does it mean if a substance is soluble?

Back

A substance is soluble if it can dissolve in a solvent, such as salt in water.

Front

What does it mean if a substance is insoluble?

Back

A substance is insoluble if it cannot dissolve in a solvent, such as sand in water.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that retain their individual properties.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a physical combination of substances, while a compound is a chemical combination of elements that results in a new substance.

Front

What is the principle of buoyancy?

Back

Buoyancy is the ability of an object to float in a fluid, which depends on the density of the object compared to the density of the fluid.

Front

What happens to the density of a gas when it is heated?

Back

When a gas is heated, its density typically decreases because the gas expands.

Front

What is the term for a substance that can catch fire easily?

Back

Flammable.

Front

What is the term for the amount of space an object occupies?

Back

Volume.