金属和酸的反应是初中化学的一个重点知识,经常在选择题中出现。所以掌握金属与酸反应的规律很重要。本文将进行分析同等质量的金属与酸反应,最终产生的氢气究竟谁多谁少。首先先了解公式:酸+金属=盐+氢气。这里的金属在金属活动性顺序里的位置在氢之前。按照书本的上所涉及到的这些金属有:钾K、钙Ca、钠Na、镁Mg、铝Al、锌Zn、铁Fe、锡Sn、铅Pb。其中前三种钾、钙、钠由于过于活泼,不仅可以和酸反应还 The reaction of metals and acids is a key knowledge of junior high school chemistry and often occurs in multiple choice questions. So master the law of metal and acid reaction is very important. This article will analyze the same quality of the metal and acid reaction, which ultimately produces less hydrogen who who more. First understand the formula: acid + metal = salt + hydrogen. The metal here is in the metal's active sequence before the hydrogen. According to the book on these metals are involved: potassium K, calcium Ca, sodium Na, Mg Mg, Al Al, zinc Zn, iron Fe, tin Sn, lead Pb. One of the first three kinds of potassium, calcium, sodium is too lively, not only can react with acid also