Question

What happens chemically when quick lime is added to water?

32) On adding dilute hydrochloric acid to copper oxide powder, the solution formed is blue-green.

Predict the new compound formed which imparts a blue-green colour to the solution.

33) Balance the following chemical equation:

Fe (s) + H2O (g) --------- Fe3O4 (s) + H2 (g)

34) Why respiration is considered an exothermic process?

35) Balance the following chemical equation:



Heat

FeSO4 --------- Fe2O3 + SO2 + SO3

36) Balance the following chemical equation:

MnO2 + HCl --------- MnCl2 + Cl2 + H2O

37) Balance the following chemical equation:

FeCl2 + H2S --------- HCl + FeS

38) Balance the following chemical equation:

HNO3 + Ca(OH)2 --------- Ca(NO3)2 + 2H2O

39) Balance the following chemical equation:

NaOH + H2SO4 --------- Na2SO4 + H2O
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Answer 1

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