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Answer:

Here are the balanced chemical equations for the reactions you've mentioned:

(i) Dilute nitric acid and copper carbonate:

CuCO₃ + 2HNO₃ → Cu(NO₃)₂ + H₂O + CO₂

(ii) Dilute nitric acid and ferric hydroxide:

Fe(OH)₃ + 3HNO₃ → Fe(NO₃)₃ + 3H₂O

(iii) Dilute nitric acid and lead carbonate:

PbCO₃ + 2HNO₃ → Pb(NO₃)₂ + H₂O + CO₂

(iv) Copper oxide and dilute nitric acid:

CuO + 2HNO₃ → Cu(NO₃)₂ + H₂O