Solutions - Part 1

What is a substance that is dissolved in another substance? 

• solution
• solute
• solvent
• compound

What is a solvent?

• The substance that does the dissolving in a solution.
• The substance that is being dissolved in a solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

When a solution is saturated:

• No additional material will dissolve in it
• You need to stir it more 
• Two materials have combined to create a clear liquid
• Crystals form 

A substance's ability to dissolve in solution

• Solubility

• Saturation

• Solvent

• Solute

Which of the following actions will NOT

increase the rate of dissolution

(dissolving)?

• Stirring the solution

• Decreasing the temperature

• Grind the substance being dissolved

• Increasing the temperature

How does a solution become supersaturated?

• dissolve exactly the amount a solvent can handle.

• not enough solute is dissolved in solution

• dissolve more solute than you should be able to.

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K₂Cr₂O₇?

• 60 ºC
• 30 ºC
• 50 ºC
• 83 ºC

How many grams of K₂Cr₂O₇, are soluble in 100 g of water at 95 ºC?

• 83 grams
• 75 grams
• 40 grams
• 12 grams

Which substance is MOST soluble at 0 ºC?

• KI
• NaNO₃
• NaCl
• Ce₂(SO₄)₃

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated