论文部分内容阅读
1.问题的提出化学方程式与离子方程式有多种分类方式,笔者在此将化学方程式划分为定比化学方程式、变比化学方程式,将离子方程式相应的划分为定比离子方程式、变比离子方程式。在外界反应条件相同时,在反应物相同的前提下,有些化学反应不会因为反应物的用量比不同(或反应物的滴加顺序不同)而导致产物不同或产物的比例不同。由于这类化学反应的产物不会随反应物用量比的改变而改变,其离子方程式中各物质(或离子)的系数比也不会随反应物用
1. Problems raised There are a variety of chemical formula and ion equation classification, the author of the chemical formula is divided into stoichiometric chemical ratio, chemical ratio equation, the ion equation is divided into the corresponding ion equation, variable ratio of ion equation . Under the same external reaction conditions, under the same reactants, some chemical reactions will not result in different products or different proportions of products due to the different amounts of reactants used (or the different reactant addition orders). Since the products of this type of chemical reaction do not change with the reactant dosage ratio, the coefficient ratio of each substance (or ion) in the ion equation will not vary with the reactant