Question

11. Balance the following equations :
(a) ZnCO2 (s) + HCl (aq) ZnCl2 (aq) + H2O (1) + CO2 (g)
(b) NH,Cl (s) + Ca(OH)2 (S) → CaCl, (s) + NH, (g) + H2O (1)
(c) Cu (s) + H2SO4 (aq) → CuSO4 (aq) + SO2 (g) + H2O (1)
12. Balance the following equations :
(a) Na (s) + H2O (1) + NaOH (aq) + H2(g)
(b) Na O2 (s) + H2O (1) + NaOH (aq) + O2(g)
(c) NaNO2 (s) 4 , NaNO, (s) + O2 (g)
(d) Cu(NO3)2 (s) A Cuo (s) + NO, (s) + 0,()
(e) Hg (NO3)2 (s) _4,
→ Hg (1) + NO2(g) + O2(g)
bautions
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Answer 1

Answer:

nearly all balanced. Let's see!

Explanation:

12. a. 2Na + 2H2o = 2 NaOH + H2