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物质的量是“海(液体)”、“陆(固体)”、“空(气体)”计算的核心统帅,思维能力是诸种能力的核心,“物质的量”这一知识点与思维高度结合,成为考查思维形式与品质的最佳素材。本文结合具体试题,解决“物质的量”试题如何思、如何解的思维视角问题。一、考查逆向思维的视角逆向思维也指思维过程的指向性,思维起点由果索因,快捷找到未知与已知缺少的关键量。例1阿伏加德罗常数值是N_A,标准状况下,若某氧气和氮气的混合气体x g含有b个分子,则yg该混合气体在标准状
The amount of matter is the core commander of the calculation of “sea” (liquid), land (solid), empty (gas), thinking ability is the core of various abilities, “This point of knowledge and thinking highly integrated, as the best way to examine the form and quality of thinking. In this paper, the specific test questions, solve ”material quantity " test questions how to think, how to solve the problem of thinking perspective. First, examine the perspective of reverse thinking Reverse thinking is also the point of thinking of the process of thinking, the starting point of thinking by reason of fruit, quickly find the key to the unknown and the lack of knowledge. Example 1 Avogadro constant value is N_A, under standard conditions, if a mixed gas of oxygen and nitrogen x g contains b molecules, yg the mixed gas in the standard