Ответ:
1. Na2SiO3 + H2SO4 = Na2SO4 + H2O+ SiO2
2. CuCl2+2 NaOH = Сu(OH)2 + 2NaCl
3. Ba(NO3)2+Na2SO4 = BaSO4+2NaNO3
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Answers & Comments
Ответ:
1. Na2SiO3 + H2SO4 = Na2SO4 + H2O+ SiO2
2. CuCl2+2 NaOH = Сu(OH)2 + 2NaCl
3. Ba(NO3)2+Na2SO4 = BaSO4+2NaNO3