A) S+O2=SO2
SO2+H2O=H2SO3
Б)Cu+S=CuS
В)Fe+2HCl=FeCl2+H2
FeCl2+2NaOH=Fe(OH)2+2NaCl
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Answers & Comments
A) S+O2=SO2
SO2+H2O=H2SO3
Б)Cu+S=CuS
В)Fe+2HCl=FeCl2+H2
FeCl2+2NaOH=Fe(OH)2+2NaCl