A sample of temporary hard water can be prepared in the laboratory by?
CHEMISTRY
JAMB 1991
A sample of temporary hard water can be prepared in the laboratory by?
- A. disolving calcium chloride in distilled water
- B. saturating lime water with carbon (IV) oxide
- C. saturating distilled water with calcium hydroxide
- D. dissolving sodium hydrogen trioxocarbonate (IV) in some distilled water
Correct Answer: B. saturating lime water with carbon (IV) oxide
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