Ответ:
13.
S+O2=SO3
So3+H2O=H2SO4
H2SO4+CaCl2=CaSO4+Hcl
CaSO4+HCl=CaCl+H2SO4
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Answers & Comments
Ответ:
13.
S+O2=SO3
So3+H2O=H2SO4
H2SO4+CaCl2=CaSO4+Hcl
CaSO4+HCl=CaCl+H2SO4