化学推断题综述

• 作 者: 孔磊
• 出 处: 今日中学生
• 发表日期: 2014年Z3期
• 关键词: 化学基本概念 元素化合物 化学计算 最外层电子数 质子数 氢氧化铜 氯化钡 失分 碳酸钡 上层清液

物质推断题是指依据题中给定的条件,联系化学基本概念和原理、元素化合物的性质、化学实验现象以及化学计算等知识,通过分析、推理、判断某种物质的名称或在给定的范围内判断某种物质是否存在的一种试题。推断题是历年各地中考的一种必考题型,这类题型所包含的内容较多,条件隐蔽,变化较大,综合性强,是考生较容易失分的题型。

Material inference questions are based on the conditions given in the title, contact the basic concepts and principles of chemistry, the nature of the chemical compounds, chemical experiments and chemical calculations and other knowledge, through the analysis, reasoning, to determine the name of a substance or in a given A test to determine whether a substance exists in the range. Inference questions are a type of exam questions that will be taken in the examinations throughout the year. Such questions include more content, more covert conditions, more changes and more comprehensiveness.