a) S+H2 = H2S 2H2S + 3O2 = 2SO2 + 2H2O
б)2 H2O +2 Na = 2NaOH + H2 H2 + 2Na = 2NaH
в) 2HBr +2 Na = 2NaBr + H2 3H2 + N2 = 2NH3
г) 2H2O +2 Na = 2NaOH + H2 H2 + Cl2 = 2HCl
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a) S+H2 = H2S 2H2S + 3O2 = 2SO2 + 2H2O
б)2 H2O +2 Na = 2NaOH + H2 H2 + 2Na = 2NaH
в) 2HBr +2 Na = 2NaBr + H2 3H2 + N2 = 2NH3
г) 2H2O +2 Na = 2NaOH + H2 H2 + Cl2 = 2HCl