chapter 13 section b

Question 1

The most important chemicals in seawater salts are sodium and _________ ions. Together they make sodium chloride—table salt.

Answer 1

chlorine

Question 2

means doesn’t easily react with other chemicals

Answer 2

inert

Question 3

Seawater diluted with fresh water is called __________ water. Saltier, more concentrated seawater is called _________.

Answer 3

brackish; brine

Question 4

________ ________ plants pump filtered seawater into special chambers under very high pressure.

Answer 4

Reverse osmosis

Question 5

At the ocean surface, seawater temperature depends mostly on the amount of __________ it absorbs and the temperature of the atmosphere above it.

Answer 5

sunlight

Question 6

The _________ of seawater is the main factor that determines how fast sound travels through it.

Answer 6

density

Question 7

The _________ of seawater is the main factor that determines how fast sound travels through it.

Answer 7

density