Balance the following chemical equations. i) Zn(s) + Ag NO3(aq) → Z

1.	Balance the following chemical equations. i) Zn(s) + Ag NO3(aq) → Zn (NO3)2(aq) + Ag(s)ii) Fe2O3(s) + C(s) → Fe(s) + CO2(g) iii) Ag(s) + H2S(g) → Ag2S(s) + H2O(I)iv) Cu(s) + O2(g) → CuO(g)
Answer» i) Zn_(s) + Ag NO_3(aq) → Zn (NO₃)_2(aq)+ Ag_(s) Balanced equation : Zn_(s) + 2 AgNO_3(aq) → Zn (NO₃)_2(aq) + 2Ag_(s) ii) Fe₂O + C_(s) → Fe_(s) + CO_2(g) Balanced equation : 2Fe₂O_3(s) + 3C_(s) → 4Fe_(s) + 3CO_2(g) iii) Ag_(s) + H₂S_(g) → Ag₂S_(s) + H₂O_(I) Balanced equation : We cannot balance the equation because atom ‘O’ does not exist in the reactants. iv) Cu_(s) + O_2(g) → CuO_(s) Balanced equation : 2Cu_(s) + O_2(g) → 2CuO_(s)

Balance the following chemical equations. i) Zn(s) + Ag NO3(aq) → Zn (NO3)2(aq) + Ag(s)ii) Fe2O3(s) + C(s) → Fe(s) + CO2(g) iii) Ag(s) + H2S(g) → Ag2S(s) + H2O(I)iv) Cu(s) + O2(g) → CuO(g)

Answer»

i) Zn_(s) + Ag NO_3(aq) → Zn (NO₃)_2(aq)+ Ag_(s)

Balanced equation : Zn_(s) + 2 AgNO_3(aq) → Zn (NO₃)_2(aq) + 2Ag_(s)

ii) Fe₂O + C_(s) → Fe_(s) + CO_2(g)

Balanced equation : 2Fe₂O_3(s) + 3C_(s) → 4Fe_(s) + 3CO_2(g)

iii) Ag_(s) + H₂S_(g) → Ag₂S_(s) + H₂O_(I)

Balanced equation : We cannot balance the equation because atom ‘O’ does not exist in the reactants.

iv) Cu_(s) + O_2(g) → CuO_(s)

Balanced equation : 2Cu_(s) + O_2(g) → 2CuO_(s)

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Balance the following chemical equations. i) Zn(s) + Ag NO3(aq) → Zn (NO3)2(aq) + Ag(s)ii) Fe2O3(s) + C(s) → Fe(s) + CO2(g) iii) Ag(s) + H2S(g) → Ag2S(s) + H2O(I)iv) Cu(s) + O2(g) → CuO(g)

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