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初三化学中,碳酸盐与碱反应,都有沉淀现象吗?
初三化学中,碳酸盐与碱反应,都有沉淀现象吗?
2025-04-07 07:26:56
推荐回答(2个)
回答1:
不一定 氢氧化钙和碳酸钠反应会生成碳酸钙和氢氧化钠因为碳酸钙微溶于水所以才会有沉淀 但大多数碳酸盐可溶 如碳酸钠(苏打)所以不一定会沉淀
回答2:
初中,如果有反应必然有沉淀。
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