Understanding Solutions in Chemistry

__________ are made up of solutes and solvents.

• Solutions
• Suspension
• Colloid

A saturated solution is______

• No more solute can be dissolved
• More solute can be dissolved
• The solvent and solution

How does a solution become supersaturated?

• dissolve lots of solute in it.
• dissolve a little solute in it. 
• try to dissolve more solute than you should be able to. 
• dissolve a super amount of solvent in it. 

Which solute is the most soluble at 10 ⁰C?

• KI
• KClO₃
• NH₄Cl
• NH₃

Which solute is the least soluble at 90 ⁰C?

• SO₂
• KClO₃
• KI
• HCl

Which solute does not increase in solubility as temperature rises?

• NH₃
• NaNO₃
• KNO₃
• NaCl

When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated
• unsaturated
• saturated

When 20 grams of KNO₃ is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated
• saturated
• unsaturated

Based on the graph, how much of NaCl will dissolve in 400g of water at 75^oC?

• 160g

• 40g

• 120g

• 20g

A solute that contains polar molecules will dissolve in a solvent that contains

• nonpolar molecules
• polar molecules
• covalent molecules
• equal-sized molecules