2. Balance the following chemical equations:
(i) Na ₊ O2 → Na2O
(ii) H2O2 → H2O ₊ O2
(iii) NH3 ₊ CuO → Cu ₊ N2 ₊ H2O
(iv) Al ₊ CuCl2 → AlCl3 ₊ Cu
(v) Ca(OH)2 ₊ CO2 → CaCO3 ₊ H2O
(i) Na ₊ O2 → Na2O
(ii) H2O2 → H2O ₊ O2
(iii) NH3 ₊ CuO → Cu ₊ N2 ₊ H2O
(iv) Al ₊ CuCl2 → AlCl3 ₊ Cu
(v) Ca(OH)2 ₊ CO2 → CaCO3 ₊ H2O
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Answer:
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Explanation:
the balancing of a chemical equation involves the balancing of all atoms at both side of the chemical equation. it means the number of atoms must be same at both sides of the chemical equation.
ii) 2H2O2 = 2H2O + O2
iii) 2NH3 + 3CuO = 3Cu + N2 + 3H2O
iv) 2Al + 3CuCl2 = 2AlCl3 + 3Cu
v) Ca(OH)2 + CO2 = CaCO3 + H2O