Solution Definitions and Classifications

Which of the following substances would be least likely to conduct electricity when it is dissolved in water?

• NaCl

• KBr

• C₁₂H₂O₁₁

• CaCl₂

Reference the picture for the following problem.

The beaker on the left contains a solution of NaOH. The beaker on the right contains NH₃. Both NaOH and NH₃ are basic substances. Which one of them is a weak electrolyte?

• NaOH

• NH₃

• neither, both are strong

• not enough information to tell

What is a solvent?

• The dissolving medium which is typically a liquid or the substance in greater amount when 2 similar phases are mixed

• The substance that is being dissolved in a solution.

• The mixing of different substances.

• The process in which neutral molecules lose or gain electrons

Fat and protein molecules in milk give white color to it but these molecules do not sink down over time. Because of that milk is;

• Solution

• Suspension

• Colloid

• Supersaturated

A type of mixture where the particles are larger than those in a solution but not heavy enough to settle out.

• Homogeneous mixture

• Colloid

• Suspension

• Compound

Both of the beakers in the picture recently stirred and you see a demonstration with light.

The beaker on the left would be a;

• Solution

• Suspension

• Colloid

• Impossible to tell

Alloys are solid-solid homogeneous mixtures of metals. Which one of the following is an example of alloys?

• Boron

• Brass

• Beryllium

• Bread

What type of mixture separates upon standing?

• Solution
• Alloy
• Colloid
• Suspension

A colloid is a mixture that contains undissolved particles. 

• True
• False

This type of mixture has particles that settle. 

• Suspension
• Colloid 
• Emulsion
• Solution