Pure Substances Unit Test Review

A pure substance that contains only one type of atom?

• element

• compound

• solution

• collid

What is a compound?

• The parts of a element.

• A heterogenius mixture.

• Two or more elements joined by physical bonds.

• Two or more elements joined by chemical bonds.

Which of the following is a homogeneous Mixture?

• Cereal in milk

• Soil

• Air

• Blood

A _____________ contains a variety of elements and compounds that are not chemically combined with each other.

• compound

• element

• molecule

• mixture

A ______________ mixture is one that does not have a uniform composition.

• heterogeneous

• homogenous

• pure substance

A _________________ mixture is one where the substances are evenly spread throughout.

• heterogeneous

• homogeneous

• pure substance

Tea and air are examples of ________________.

• solutions

• suspensions

• colloids

Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.

• heterogeneous

• homogeneous

• pure

• green

Coffee, mouthwash, and vinegar are examples of __________________ mixtures.

• heterogeneous

• homogeneous

• pure

• purple

Which of these is an element?

• Salt (NaCl)

• Water (H20)

• Oxygen (O)

• Carbon Dioxide (CO2)