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同学们在学习碱的通性时,应在掌握两种典型碱(氢氧化钠、氢氧化钙)的化学性质的基础上,及时进行总结,归纳出碱的通性,其要求是达到非常熟练、举一反三的程度.学习中尤要注意将碱的通性与其个性有机结合,进行全面思考与分析.为帮助同学们掌握,现总结归纳如下.总结一:碱的通性由于碱在水溶液中能电离出相同的OH-,所以碱类物质具有一些相似的性质.主要有:1.与指示剂作用(仅限于可溶性碱).
Students learn the generality of the base, should master the two typical alkali (sodium hydroxide, calcium hydroxide) on the basis of the chemical properties, in a timely manner to summarize the generality of the base, the requirement is to achieve very good , Learn from each other .In learning, especially pay attention to the generality of the base and its personality organic combination of comprehensive thinking and analysis .To help students to master, are summarized as follows.Conclusion: Alkaline connectivity due to alkali in aqueous solution can Ionized out of the same OH-, so the basic substances have some similarities, mainly: 1. With the indicator (only soluble base).