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决定物质发生化变化的内部因素是物质的化学性质,促使物质发生化学变化的外部因素是特定的反应条件.对于初中化学中常见的反应条件进行分类记忆,可以使我们无须死记条件,而且不会忘记标注条件,从而能够正确地书写化学反应方程式.一、书写化学方程式应标注的条件1.加热(通常用△表示)加热是化学反应中出现频率最高的反应条件,如果以反应类型为线索进行整理归纳,涉及加热条件的化合反应通常有一
The internal factor that determines material change is the chemical nature of the material, and the external factors that cause the material to undergo chemical changes are the specific reaction conditions.Classification of the reaction conditions common to junior chemical chemistry allows us to eliminate the need for memorization, Forget the labeling conditions, which can correctly write the chemical reaction equation First, the writing chemical equation should be marked conditions 1. Heating (usually △) Heating is the chemical reaction in the most frequent reaction conditions, if the reaction type as a clue Put together to summarize, usually involving a combination of reactions involving heating conditions