OBERLIN HIGH GRADE 10 CHEMISTRY SIX WEEKS TEST

1. Mixtures can be classified as homogeneous and heterogeneous which of the following is homogeneous:

• a) Seawater

• B) Milk

• C) Clay and water

• D) Mayonnaise

Which of the following are heterogeneous mixtures?

• a) Colloids and suspensions

• b) Solutions and colloids

• c) Solutions and suspensions

• d)Colloids, suspensions and solutions

A liquid mixture in which particles can be seen and easily separated by settling or filtration is a ____________

• solution

• suspension

• solvent

• solute

Milk is an example of which type of mixture?

• solution

• suspension

• colloid

• compound

A mixture of one substance dissolved evenly throughout another

• Colloid

• Emulsion

• Solution

• Suspension

What is the definition of a solvent?

• The substance that is dissolved.

• The substance in which the solute is dissolved.

• Unable to be dissolved.

• the substance that evaporates

A substance made of only 1 type of atom is called --

• an element

• a salt

• a compound

• a mixture

A substance made of two or more PHYSICALLY combined substances is--

• an element

• a mixture

• a salt

• a compound

Which of the pictures represents a mixture?

• A

• B

• C

• A and B

Diffusion is the movement of molecules from an area of _____ concentration to an ______ concentration

• High, low

• Low, high

• Low, low

• High, high