A. calcium hydroxide
B. calcium hydrogen trioxocarbonate (IV)
C. calcium trioxocarbonate (IV)
D. calcium tetraoxocarbonate
E. magnesium tetraoxocarbonate (VI)
Correct Answer:
Option C – calcium hydrogen trioxocarbonate (IV)
Explanation
The furring of kettles or boilers – this is as a result of the decomposition of Ca(HCO3)2 into CaCO3, and this coats the inside of a kettle or boiler used in heating water containing dissolved Ca(HCO3)2.
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