Автор - drstrong888

H2 → HCl → NaCl → Na2SO4 → BaSO4

Ответ

Автор - Vlada338
H2+Cl2=2HCl
HCl+NaOH=NaCl+H2O
2NaCl+H2SO4=Na2SO4+2HCl
Na2SO4+Ba(OH)2=BaSO4+2NaOH

Ответ

Автор - Анетка125
H2+Cl2=2HCl
HCl+NaOH=NaCl+H2O
2NaCl+H2SO4=2HCl+Na2SO4
Na2SO4+Ba(OH)2=2NaOH+BaSO4

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