Solutions Unit Review

First Name

Last Name

Period

• 1
• 2
• 3
• 5
• 6

1. _____ are less soluble in hot water than in cold water.

• gases
• liquids
• solids

2. When added to water, iodine crystals do not dissolve. Water is polar, and iodine is ______.

• polar
• nonpolar
• ionic

3. The "universal solvent?"

• water
• acid
• sugar
• salt

4. For solids dissolving in liquids, an increase in temperature will _____ solubility.

• decrease
• increase
• not affect

5. What temperature is needed to dissolve 135g of KNO3 in a sample of water?

• 40˚C
• 48˚C
• 70˚C

6. At 60°C, would a solution be saturated if it contains 95g of KNO3 dissolved in water?

• Yes, it would be unsaturated
• No, it would be unsaturated

7. When the temperature is 80°C, 170g of KNO3 is dissolved in water. What is the saturation of this solution?

• unsaturated
• saturated
• supersaturated