1. What are two possible reasons for the Riverwood fish kill?
2. What are the units normally used to express the solubility
of a substance?
3. If you have a beaker containing a supersaturated solution
of potassium nitrate, what would happen if you jarred, or
disturbed, the solution?
4. As water temperature INCREASES, what happens to the
solubility of gases?
5. Besides temperature, what other factor effects the
solubility of gases?
6. Another way to tell the concentration of a solution is by
using percentage. What would be the % concentration of a
solution containing 10 grams of salt dissolved in 90 grams of
water?
7. What is one gas that ALL mammals need to survive?
8. What happens when water is AERATED?
9. What is another way for oxygen to be added to the water in
a river or lake, besides aeration?
10. Give the overall, balanced chemical equation for the
formation of glucose from photosynthesis..
11. What are oxygen-consuming bacteria called?
12. If a detergent is said to be biodegradable, what does that
mean?
13. What's the abbreviation for the phrase "dissolved oxygen"?
14. What units are used to measure the dissolved oxygen
concentrations?
15. If the temperature of the water is doubled, what happens
to the rate of the chemical reactions that are going on in it?
16. Name three metal ions essential to our health.
17. Name three dangerous, heavy metal ions that might be found
in a river or lake.
18. Name three molecular substances (not ionic substances)
that might be found in the river.