Chemistry
Give balanced equations for the decomposition of
- calcium bicarbonate by dil. HCl
- calcium carbonate by dil. HNO3
- sodium sulphite by dil. H2SO4
- zinc sulphide by dil. H2SO4.
Answer
- Decomposition of calcium bicarbonate by dil. HCl
Ca(HCO3)2 + 2HCl ⟶ CaCl2 + 2H2O+ 2CO2 - Decomposition of calcium carbonate by dil. HNO3
CaCO3 + 2HNO3 ⟶ Ca(NO3)2 + H2O+ CO2 - Decomposition of sodium sulphite by dil. H2SO4
Na2SO3 + H2SO4 (dil.) ⟶ Na2SO4 + H2O + SO2 - Decomposition of zinc sulphide by dil. H2SO4
ZnS + H2SO4 ⟶ ZnSO4 + H2S
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