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有一类化学反应,由于反应的条件(如温度)或反应物之间配比的不同,导致产物也不相同。这类化学反应的有关计算或讨论比较复杂。若能巧妙地运用数轴来求解,不仅能够做到化难为易.且能达到举一反三,触类旁通的功效。运用数轴解题的步骤:(一)写出所有可能发生的化学反应方程式;(二)取水平数轴表示反应物间质量或物质的量的比值,并在数轴上描出上述各反应恰好发生的点;(三)依点所划分的区间范围进行讨论或求解。
There is a type of chemical reaction that results in different products due to different reaction conditions (such as temperature) or ratios between reactants. The calculation or discussion of such chemical reactions is more complicated. If we can skillfully use several axes to solve, not only can it be difficult to achieve, but it can also achieve the effect of analogy. Steps to solve the problem using the number of axes: (a) write down all possible chemical reaction equations; (b) take the horizontal axis represents the ratio of the mass of the reactants or the ratio of the amount of the substance, and trace the points on the number of axes exactly occur (3) To discuss or solve the interval range divided by points.