7. Why is water called the universal solvent?
It can dissolve many substances, III. It does not dissolve all substances.
II.
It is found anywhere.
IV. It is colorless and odourless.
A. I only
B. I and II
C. I, II, III D. I, II, III, IV
8. Which factor DOES NOT affect the solubility of salt in water?
A. Add sugar to the water
C. Heat the water and salt
B. Grind the salt to make it finer
D. Stir the water and salt
9. Sugar, coffee, and milk dissolve faster in hot water. Which factor of solubility is described in the
statement?
A. Nature of solvent B. Nature of solute C. Pressure D. Temperature
10. Von mixed a tablespoon of sugar in a glass of hot water while Hezekiah mixed a tablespoon of sugar
in a glass of tap water. What do you think will happen?
A. The sugar in both set-ups floated. C. The sugar dissolved faster in tap water.
B. The sugar dissolved faster in hot water. D. The sugar did not dissolve completely in both set-ups.
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Answer:
7. A. I only
8. A. Add sugar to the water
9. D.Temperature
10. B.The sugar dissolved faster in hot water