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CHEMISTRY

JAMB 2017 - Question 16

Chemistry 2017 JAMB Past Questions - Question 16: Temporary hard water is found when rain water containing dissolved carbon(IV) oxides flows over deposits of

Choose the most appropriate option for the gap .

Temporary hard water is found when rain water containing dissolved carbon(IV) oxides flows over deposits of

A: CaCO3

B: Na2CO3

C: Na2SO4

D: CaSO4

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Correct Answer

Explanation

H2O+CO2+CaCO3 Ca(HCO3)2