Question

Acid chemical formula​

Answer 1

Answer:

Acids and Bases

Compound Formula % by Weight

Acetic acid, glacial CH3COOH 99.5

Formic acid HCOOH 90

Hydrochloric acid HCl 36

Nitric acid HNO3 71

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Answer 2

Answer:

CaO + CO2 ------------> CaCO3 + H2O

CO2 + H2O -------------> H2CO3

Explanation:

A is CaO (calcium oxide) , B is CO2(Carbon dioxide) , C is CaCO3(calcium carbonate) , D is H2CO3( carbonic acid , also known as bicarbonate)

when excess of B is passed through A , then it forms Ca(HCO3)2 {calcium bicarbonate}

CaCO3 + H2O + CO2 -----------> Ca(HCO3)2

remember that CaO should be in aqueous form for the reaction to occur , that means that it should not be solid CaO but Lime Water