论文部分内容阅读
离子共存作为高考的重要考点,在每年的广东高考卷都会出现,从历年高考中有关离子共存问题的难度上分析,这类问题都属于中等难度,一般是以单项选择题的形式出现。这类题型主要考查考生对离子反应的概念、氧化还原反应概念、离子反应发生条件的了解。
Ion coexistence as an important test of the college entrance examination in the annual Guangdong college entrance examination will appear from the calendar year college entrance examination in the analysis of the coexistence of ions on the difficulty of such issues are of medium difficulty, usually in the form of single-choice questions. This type of questions mainly examine the candidates on the concept of ion reaction, the concept of redox reaction, ion reaction conditions to understand.