Выберите окислительно-восстановительные реакции.
1)N2O5+H2O=2HNO3
2)2H2O=2H2+O2
3)Cu(OH)2=CuO+H2O
4)SO3+H2O=H2SO4
5)H2+S=H2S
6)CaO+3C=CaC2+CO
7)2H2S+3O2=2H2O+2SO2
8)N2+3H2=2NH3
1)N2O5+H2O=2HNO3
2)2H2O=2H2+O2
3)Cu(OH)2=CuO+H2O
4)SO3+H2O=H2SO4
5)H2+S=H2S
6)CaO+3C=CaC2+CO
7)2H2S+3O2=2H2O+2SO2
8)N2+3H2=2NH3
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2) 2H₂O=2H₂+O₂
2H₂⁺O⁻²=2H₂⁰+O₂⁰
5) H₂+S=H₂S
H₂⁰+S⁰=H₂⁺S⁻²
6) CaO+3C=CaC₂+CO
CaO+3C⁰=CaC₂⁻+C⁺²O
7) 2H₂S+3O₂=2H₂O+2SO₂
2H₂S⁻²+3O₂⁰=2H₂O+2S⁺⁴O₂⁻²
8) N₂+3H₂=2NH₃
N₂⁰+3H₂⁰=2N⁻³H₃⁺