Ответ:
1) Na2O + H2SiO3= Na2SiO3 + H2O
2) Fe2O3 + 6HCl = 2FeCl3 + 3H2O
3) HgO + H2SO4 = HgSO4 + H2O
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Ответ:
1) Na2O + H2SiO3= Na2SiO3 + H2O
2) Fe2O3 + 6HCl = 2FeCl3 + 3H2O
3) HgO + H2SO4 = HgSO4 + H2O