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vuhuong12112002
2 năm trước
viết phương trình phân tử từ pt ion thu gọn sau Fe2o3 + 6H+ > 2fe3+ +3h2o b Nh4+ + Oh- > NH3 + H20 FE2+ + 3OH- > FE(OH)3 d S2- + 2H+ > H2S E CO32- + 2H+ > CO2 +H2O f CH3COO- + H+ > CH3COOH g AG+ + CL-> AGCL h BA2+ + SO42- > BASO4
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