Chemistry neco 2009

The furring of kettles and boilers are caused by

a

calcium hydroxide

b

calcium hydrogen trioxocarbonate (IV)

c

calcium trioxocarbonate (IV)

d

calcium tetraoxocarbonate

e

magnesium tetraoxocarbonate (VI)

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Correct Option
c

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Discussions (6)

R.uby
8 years ago

dats b

Juliwhiz
5 years ago

The hydrogen is missing

Wrestle
4 years ago

myschool please try and have sense in puting answers here.

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