題目列表(包括答案和解析)
(1)在進行沉淀反應(yīng)的實驗時,如何確定沉淀已經(jīng)完全?
(2)中學(xué)化學(xué)實驗中,怎樣在過濾器中洗滌沉淀?
回答下面問題:
(1)在進行沉淀反應(yīng)的實驗時,如何認定沉淀已經(jīng)完全?
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(2)中學(xué)化學(xué)實驗中,在過濾器上洗滌沉淀的操作是
_____________________________________________________________________________________________________________________________________________________________________________________________________________.
(1)在進行沉淀反應(yīng)的實驗時,如何認定沉淀已經(jīng)完全?
_____________________________________________________________________________________________________________________________________________________________________________________________________________________.
(2)中學(xué)化學(xué)實驗中,在過濾器上洗滌沉淀的操作是
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