向KAl(SO4)2 溶液中滴加Ba(OH)2溶液中,使SO4^2- 恰好完全沉淀,反应的离子方程式正确的是( )A.Ba^2+ +SO4^2-=BaSO4↓B.2Al^3+ +3SO4^2- +6OH- =3BaSO4↓+2Al(OH)3↓C.Al^3+ +2SO4^2- +2Ba^2+ +3OH-=2BaSO4↓+Al(OH)3↓D.Al^3+ +2SO
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![向KAl(SO4)2 溶液中滴加Ba(OH)2溶液中,使SO4^2- 恰好完全沉淀,反应的离子方程式正确的是( )A.Ba^2+ +SO4^2-=BaSO4↓B.2Al^3+ +3SO4^2- +6OH- =3BaSO4↓+2Al(OH)3↓C.Al^3+ +2SO4^2- +2Ba^2+ +3OH-=2BaSO4↓+Al(OH)3↓D.Al^3+ +2SO](/uploads/image/z/4816145-65-5.jpg?t=%E5%90%91KAl%28SO4%292+%E6%BA%B6%E6%B6%B2%E4%B8%AD%E6%BB%B4%E5%8A%A0Ba%28OH%292%E6%BA%B6%E6%B6%B2%E4%B8%AD%2C%E4%BD%BFSO4%5E2-+%E6%81%B0%E5%A5%BD%E5%AE%8C%E5%85%A8%E6%B2%89%E6%B7%80%2C%E5%8F%8D%E5%BA%94%E7%9A%84%E7%A6%BB%E5%AD%90%E6%96%B9%E7%A8%8B%E5%BC%8F%E6%AD%A3%E7%A1%AE%E7%9A%84%E6%98%AF%EF%BC%88+%EF%BC%89A.Ba%5E2%2B+%2BSO4%5E2-%3DBaSO4%E2%86%93B.2Al%5E3%2B+%2B3SO4%5E2-+%2B6OH-+%3D3BaSO4%E2%86%93%2B2Al%28OH%293%E2%86%93C.Al%5E3%2B+%2B2SO4%5E2-+%2B2Ba%5E2%2B+%2B3OH-%3D2BaSO4%E2%86%93%2BAl%28OH%293%E2%86%93D.Al%5E3%2B+%2B2SO)
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