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化学是一门以实验为基础的科学.只有掌握了正确的实验操作,才能顺利地完成实验.下面结合具体实例帮助同学们分析一些常见实验操作错因,掌握正确的实验技能.一、药品的存放化学药品在贮存时常因保管不当而变质.有些药品容易吸湿而潮解或水解;有的药品易跟空气中的氧气、二氧化碳或扩散在其中的其他气体发生反应;还有一些药品受光照和环境温
Chemistry is an experiment-based science.Only by mastering the correct experimental operation in order to successfully complete the experiment.The following combination of specific examples to help students analyze some of the common experimental operation error, master the correct experimental skills. Storage of chemicals is often improper storage due to improper storage Some drugs easily hygroscopic deliquescence or hydrolysis; some drugs easily with the air of oxygen, carbon dioxide or other gases diffused in them react; there are some drugs by the light and the environment temperature