Chapter 23: Solutions Quiz

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Presentation transcript:

Chapter 23: Solutions Quiz Chuck Higy

1. When water dissolves sugar, the positive ends of the water molecules are attracted to the negative ends of the sugar molecules. True False 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

2. The dissolving process for solid solutions occurs in a solid state. True False 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

3. Salad oil dissolves readily in vinegar. True False 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

4. Oil-based paints, nail polish, and iodine are examples of polar solutes. True False 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

5. Water can be used to dissolve nonpolar molecules. True False 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

6. A substance that does NOT conduct an electric current when it forms a solution is a(n) ____. Electrolyte Nonelectrolyte Liquid Solid 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

7. A solution that contains all of the solute it can hold at a given temperature is ____. Diluted Supersaturated Unsaturated Saturated 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

8. Adding more solute to a solvent ____. Decreases boiling point Affects nothing Increases freezing point Increases boiling point 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

9. A molecule that is positively charged on one end and negatively charged on the other end is ____. A hydrocarbon Nonpolar Polar Radioactive 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

10. Which of the following combinations would increase the solubility of a gas in a liquid? Decrease pressure & decrease temperature Increase pressure & increase temperature Decrease pressure & increase temperature Increase pressure & decrease temperature 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27