Chemistry > 2007 > 38
JAMB UTME
When temporary hard water is boiled for some time in a kettle, the inner surface of the kettle becomes coated with a deposit of
A.
aluminium trioxocarbonate(IV)
B.
calcium hydrogentrioxocarbonate(IV)
C.
calcium tetraoxosulphate(VI)
D.
calcium trioxocarbonate(IV)
Answer: D
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