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中考化学满分必背知识点!
(高锰酸钾溶液为紫红色) 5.沉淀(即不溶于水的盐和碱): ①盐:白色↓:CaCO3、BaCO3(溶于酸) AgCl、BaSO4(不溶于稀HNO3) 等 ②碱:蓝色↓:Cu(OH)2红褐色↓:Fe(OH)3白色↓:Mg(OH)2。 注意:具有刺激性气味的液体:盐酸、硝酸、醋酸。酒精为有特殊气体的液体 ...
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