Ответ:
Be+Cl2=BeCl2
BeCl2+2H2O=Be(OH)2+2HCl
Be(OH)2+H2SO4=BeSO4+2H2O
BeSO4+H2O=Be(OH)2+H2SO4
Be(OH)2+2KOH=K2BeO2+2H2O
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Ответ:
Be+Cl2=BeCl2
BeCl2+2H2O=Be(OH)2+2HCl
Be(OH)2+H2SO4=BeSO4+2H2O
BeSO4+H2O=Be(OH)2+H2SO4
Be(OH)2+2KOH=K2BeO2+2H2O
Можно ведь Cl2 заменить на HCl ?