论文部分内容阅读
无机流程题多以制备物质为目的,涉及物质的分离、提纯等操作,具有知识范围广、综合性强、选拔性强等特点,已成为高考化学的必考题型。但无机流程题也是考生普遍感觉较难的题型,究其原因,主要是:①看不懂流程;②不会应用已学化学原理和元素化合物基础知识判断反应产物,不能正确书写陌生的化学方程式:
Inorganic flow problems mostly for the preparation of materials for the purpose, involving the separation of substances, purification and other operations, with a wide range of knowledge, comprehensive, and strong selection, has become a college entrance exam chemistry exam questions. However, the inorganic flow test is also generally felt by candidates more difficult questions, the reasons are mainly: ① can not understand the process; ② will not apply the chemical principles and elements of the basic knowledge of chemical compounds to determine the reaction products can not correctly write strange chemical equation: