Study Guides - Cherokee County Schools

Name Date Class
4
84 Dissolving Without Water
Study Guide
Dissolving Without Water
Chapter
22
Directions: Find the mistakes in the statements below. Rewrite each statement correctly on the lines provided.
1. Water is sometimes referred to as the universal solvent because it is a large molecule and can
fit easily among the molecules of many solutes.
2. Nonpolar materials have positive and negative areas.
3. Carbon and hydrogen atoms in hydrocarbon molecules share electrons unequally.
4. Nonpolar molecules such as oil, iodine, and nail polish dissolve easily in water.
5. Ethanol can dissolve iodine as well as water because it has two nonpolar ends.
6. A general statement describing what dissolves what is the phrase “Polar dissolves nonpolar.”
7. When working with nonpolar solvents, good ventilation is important because nonpolar
solvents tend to evaporate more slowly than water, producing high concentrations of vapor.
8. Water-soluble vitamins, such as Vitamin A, can accumulate in our tissues and can be toxic in
high concentrations.
9. Fat-soluble vitamins, such as Vitamin C, can be flushed out of the body before they can be
used and therefore must be replaced constantly.
10. Water molecules are attracted by, and cling to, molecules of nonpolar solutes, making them
sticky and slowing evaporation.
Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc.