Chapter 21 Review

A liquid known as the universal solvent is:

• sulfuric acid

• water

• sodium hydroxide

• vinegar

The human body is comprised of _____ water.

• 20-40%

• 40-60%

• 60-75%

• 75-95%

Water is described as a polar molecule because it has:

• a positive and negative pole

• two positive ples

• two negative poles

• no charge

The bond between a water molecule's oxygen atom and the hydrogen atoms of another water molecule is known as a:

• hydrogen bond

• oxygen bond

• covalent bond

• ionic bond

A non-polar molecule is

• easily dissolved in water and uncharged

• easily dissolved in water and charged

• unlikely to dissolve in water and charged

• unlikely to dissolve in water and uncharged

water is a solvent in which of the following solutions?

• air

• sterling silver

• salt solution

• corn oil

A mixture of two or more substances that is uniform at the molecular level is considered a

• solution

• atom

• compound

• molecule

Of the following, the solution that represents an alloy is:

• air

• sugar water

• 14 karat gold

• soda

If you can see a beam of lilght through a fluid you are observing the

• tyme effect

• tyndall effect

• archimede effect

• pascal effect

The largest part of a solution is called

• solvent

• solute

• precipitate

• mixture