Chemistry Ch.12

Which of the following has components that are obviously different?

• homogeneous mixture

• solution

• colloid

• heterogeneous mixture

A heterogeneous mixture always contains

• only one substance

• more than two substances

• two or more substances that are visibly distinguishable

• two or more substances that are not visibly distinguishable

Which of the following is a thoroughly mixed homogeneous mixture of substances in a single phase?

• solution

• colloid

• compound

• a suspension

Which of the following is NOT a solute-solvent combination?

• gas-gas combinatinon

• gas-liquid combination

• gas-solid combination

• liquid-solid combination

Sugar in water is an example of which solute-solvent combination?

• gas-liquid

• liquid-liquid

• solid-liquid

• liquid-solid

Which mixture contains visible particles that settle out unless the mixture is stirred?

• a colloid

• a homogeneous mixture

• a solution

• a suspension

Which mixture contains particles that are in a dispersed phase and do not settle out?

• a colloid

• a heterogeneous mixture

• a solution

• a suspension

A metal solution is a(n)

• colloid

• alloy

• suspension

• electrolyte

Colloids

• can be separated by filtering

• settle out when allowed to stand

• scatter light

• are heterogeneous

The Tyndall effect is used to distinguish between

• liquids and gases

• solutions and colloids

• colloids and heterogeneous mixtures

• solvents and solutes