1. The atmosphere of earth is an example of what kind of solution?

Question

A. liquid-liquid
B. gas-liquid
C. gas-gas***
D. solid liquid

2. Which of the following will result in a greater amount of oxygen dissolving in water?
A. Heat the water***
B. Decrease the oxygen gas pressure
C. Increase the oxygen gas pressure
D. All of the above

3. ____ are substances that release positively charged hydrogen atoms, while ______ are substances accept positively charged hydrogen atoms.
A. acids; aqueous solution
B. bases; saturated solutions
C. acids; bases***
D. weak acids; alloys

9. Given equal concentrations, which of the following produces the FEWEST amount of hydronium ions in an aqueous solution?
A. strong acid
B. weak acid
C. strong base
D. weak base

Answer 1

2 is wrong. 1 and 3 are right. 9 is confusing; the answer depends upon how the question is interpreted. If it means the fewest H3O^+ IN SOLUTION the answer is C. If it actually means the fewest H3O^+ PRODUCED then both C and D are right. Neither C nor D PRODUCES a H3O^+.