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人类早在16世纪时,就知道稀硫酸与某些金属反应可得到氢气。至今,实验室制取氢气,仍然用稀硫酸与锌反应来制取。现对金属与酸反应谈谈几种情况。一、为什么实验室室制取氢气常选用锌和稀硫酸?酸除硫酸外,还有盐酸、硝酸等。但实验发现有的金属能跟酸反应生成氢气;有的金属跟酸反应却不产生氢气;有的金属跟酸不反应。
As early as the 16th century, human beings knew that hydrogen could be obtained from the reaction of dilute sulfuric acid with some metals. So far, laboratory hydrogen production, still with dilute sulfuric acid and zinc reaction system. Now the reaction of metal and acid to talk about several situations. First, why laboratory hydrogen production system often choose zinc and dilute sulfuric acid? Acid addition to sulfuric acid, there are hydrochloric acid, nitric acid and so on. However, the experiment found that some metals can react with acid to generate hydrogen; some react with acid but do not produce hydrogen; some do not react with acid.