不管多么简单的化学实验,当你动手做之前,首先要解决好的问题,应当是参与反应的化学物质该以何等的量相互反应,才能有最理想的反应速度,最明显的实验现象,最佳的实验效果。通常的化学教科书,在叙述化学实验步骤时,对普通试剂用量常有如下叙述:少量、适量、足量,1克(或1—2克)、2克(或2—3克),1毫升(或1—2毫升)、2毫升(或2—3毫升)、加热、微热……等。应当 No matter how simple chemistry experiments are, before you start, you must first solve the good problems. It should be the amount of chemicals that participate in the reaction to react to each other in order to have the best reaction speed, the most obvious experimental phenomenon, and Good experimental results. In general chemistry textbooks, when describing chemical experiment procedures, the following general descriptions are used for the amount of common reagents: small amount, adequate amount, sufficient amount, 1 gram (or 1-2 grams), 2 grams (or 2-3 grams), 1 ml (or 1-2 ml), 2 ml (or 2-3 ml), heated, slightly hot...etc. should