This precipitate dissolves in an excess of aqueous ammonia.
这个沉淀能溶解在过量的氨水中。
When we pass an excess of carbon dioxide into the limewater, the white precipitate disappears. This is because the precipitate dissolves to form soluble calcium hydrogencarbonate.
我们把过量的二氧化碳通入石灰水时，白色沉淀物会消失，因为沉淀物反应生成可溶于水的碳酸氢钙。
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