高考中的化学计算型试题主要有选择、填空、简答、全过程计算等基本题型,细细分析,可以发现以下命题特点。一、物质的多元性题目涉及物质的多组分,造成研究对象头绪多、关系杂。准确掌握物质间的相互反应关系及根据化学方程式进行计算,是解题的基础。解题基本策略为:理清物质关 The chemistry test questions in the college entrance examination mainly include basic questions such as selection, filling in the blanks, short answer, and calculation of the whole process. After careful analysis, the following proposition features can be found. First, the multiplicity of substances involves the multi-components of substances, resulting in many research subjects and mixed relationships. Accurate understanding of the relationship between substances and the calculation of chemical equations is the basis for problem solving. The basic strategy for problem solving is to clarify the matter