Q: What is produced by the reaction of metal oxide with water? Choices: - heat energy - rust - hydrogen gas - soluble metal hydroxides A:
soluble metal hydroxides

(Question)
Q: What is a carbon-based compound that is found in living things called? Choices: - organic compound - biological compound - genetic compound - biochemical compound A:
(Answer)
biochemical compound

Ques: Q: What percentage of men suffer from some form of erectile dysfunction by age 40? Choices: - approximately 60 percent - approximately 10 percent - approximately 80 percent - approximately 40 percent A:
Ans: approximately 40 percent

(Q).
Q: What term describes the process where organisms convert atmospheric nitrogen into biologically useful chemicals? Choices: - carbon cycle - cellular respiration - photosynthesis - nitrogen fixation A:
(A).
nitrogen fixation

Ques:Q: What are ionic solutes? Choices: - solvent - salts - carbohydrates - electrolytes A:

Ans:electrolytes

Q: Why does water have a high surface tension? Choices: - high freezing point - helium bonding - oxygenation - hydrogen bonding A:
hydrogen bonding