Ответ:
Be(OH)2 + 2HCl → BeCl2 + 2H2O
Be(OH)2 + 2NaOH → Na2BeO2 + 2H2O
Zn(OH)2 + H2SO4 → ZnSO4 + 2H2O
Zn(OH)2 + 2KOH → K2ZnO2 + 2H2O
2Cr(OH)3 + 3H2SO4 → Cr2(SO4)3 + 6H2O
Cr(OH)3 + 3NaOH → Na3CrO3 + 3H2O
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Ответ:
Be(OH)2 + 2HCl → BeCl2 + 2H2O
Be(OH)2 + 2NaOH → Na2BeO2 + 2H2O
Zn(OH)2 + H2SO4 → ZnSO4 + 2H2O
Zn(OH)2 + 2KOH → K2ZnO2 + 2H2O
2Cr(OH)3 + 3H2SO4 → Cr2(SO4)3 + 6H2O
Cr(OH)3 + 3NaOH → Na3CrO3 + 3H2O