Объяснение:
S+O2=SO2
2H2+O2=2H2O
Hg+S=HgS
2Na+2H2O=2NaOH+H2
C+O2=CO2
2Cu+S=Cu2S
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Объяснение:
S+O2=SO2
2H2+O2=2H2O
Hg+S=HgS
2Na+2H2O=2NaOH+H2
C+O2=CO2
2Cu+S=Cu2S