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金属与硝酸的反应是一类典型的氧化还原反应,其有关计算涉及知识面广,对初学这部分内容的同学来说难度较大.本文旨在思维模型的建立和解题技巧的突破,不当之处,敬请同行指正.一、指导思想1.思维模型建立2.由浓变稀的思想金属与一定量的浓硝酸反应时,由于随着反应过程中硝酸的不断消耗、加上反应生成的水不断增加,硝酸的浓度逐渐降低.金属与浓稀硝酸的反应产物是不一样的.所以一定要注意:当
The reaction between metal and nitric acid is a kind of typical redox reaction, and its calculation involves a wide range of knowledge, which is more difficult for the students who begin this part of the content.This paper aims to establish the thinking model and solve the problem of skill breakthrough, improper First, the guiding ideology 1. Thinking model established 2. By the thinning of the thought of metal and a certain amount of concentrated nitric acid reaction, due to the continuous consumption of nitric acid in the reaction process, coupled with the reaction generated Of water is increasing, the concentration of nitric acid is gradually reduced, the reaction product of metal and concentrated dilute nitric acid is not the same, so we must pay attention: when