Unit 8 - Dissolving Without Water

1. A ______ is a large molecule made of carbon and hydrogen atoms.

Hydrogen oxide

Hydrocarbon

Solvent

Solute

2. What characteristic of water makes it the universal solvent?

Nonpolar

Large molecules

Long-chain hydrocarbon

Polar

3. Because electrons are distributed equally, a hydrocarbon is ______.

Polar

Nontoxic

Nonpolar

Insoluble

4. Why is it dangerous to take large doses of some nonpolar vitamins?

They are fat soluble and accumulate in body tissues.

They are water soluble and become concentrated in body tissues.

They cannot dissolve in fat and instead dissolve in the water inside body cells.

These substances cannot be utilized by the body.

5. Which of the following statemenst is true?

Nonpolar solvents are useful for dissolving polar solutes.

Polar solvents are useful for dissolving nonpolar solutes.

Nonpolar solvents are not useful because they do not form solutions with water.

Nonpolar solvents are useful for dissolving nonpolar solutes.