Ответ:
S + 2Na = Na2S
Na2S + 2HCl = NaCl + H2S
2 H2S +3 O2 = 2 SO2 + 2 H2O
2 SO2 + O2 = 2SO3
SO3 + H2O = H2SO4
H2SO4 + BaCl2 = BaSO4 + 2HCL
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Ответ:
S + 2Na = Na2S
Na2S + 2HCl = NaCl + H2S
2 H2S +3 O2 = 2 SO2 + 2 H2O
2 SO2 + O2 = 2SO3
SO3 + H2O = H2SO4
H2SO4 + BaCl2 = BaSO4 + 2HCL