化学实验是化学高考的热点,实验试题年年出现,题型新颖,测试要求渐见加严,层次不断拔高,通过新情境题型全面地测试学生的基础知识,联系实际突出综合应用能力、评价能力和独立设计实验能力的考查,要求学生既会组装仪器及实验操作,又懂得化学原理,并能用简要文字表述。试题难度大,对应试者有潜在的心理威慑。现举典型试题数例,阐述解题思路,从中可窥见这类试题解题的一般方法。 Chemical experiment is a hot spot in the chemistry college entrance examination. Experimental examination questions appear year after year. The questions are novel, the testing requirements are gradually tightened, the levels are constantly raised, the basic knowledge of the students is fully tested through the new situation questions, and the integrated application ability and evaluation are emphasized in connection with the actual situation. Ability and the ability to independently design experimental capabilities require students to assemble instruments and experimental operations, as well as to understand chemical principles, and to use brief texts. The test questions are difficult and correspondent candidates have potential psychological deterrence. Now give a few examples of typical questions, explain the problem-solving ideas, from which you can glimpse the general method of solving such questions.