Substances and Mixtures

Front

What is a heterogeneous mixture?

Back

A mixture where the components are not uniformly distributed, and different parts can be seen, such as salad or Chex mix.

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, such as saltwater or air.

Front

What is a pure substance?

Back

A material that has a constant composition and properties throughout, such as distilled water or gold.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means, such as oxygen or carbon.

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together, such as water (H2O) or carbon dioxide (CO2).

Front

What is a solute?

Back

The substance that is dissolved in a solution, such as sugar in water.

Front

What is a solvent?

Back

The substance that dissolves the solute in a solution, such as water in a sugar solution.

Front

What is a solution?

Back

A homogeneous mixture of two or more substances, where one is dissolved in the other.

Front

Where are electrons found in an atom?

Back

Electrons are found in electron clouds surrounding the nucleus of an atom.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a physical combination of substances that can be separated, while a compound is a chemical combination that cannot be separated by physical means.