在化学计算中,很多人都着重于选择题中的计算技巧的研究,而忽略了综合计算中的技巧,导致大多数学生只会按部就班地解题,严重束缚了学生的创造性思维,影响了学生的解题速度。本文拟以几道常见的综合题为例,谈谈其略具技巧的解法。 冽1.有一由氧化铜与炭粉组成的混合物8.3克,在试管中充分加热至高温,反应不再发生后试管内仍有黑色物质,继续通氢气加热还原,并在氢气中冷却, In chemistry calculations, many people focus on the study of computational skills in multiple-choice questions, ignoring the skills in comprehensive calculations, leading most students to solve questions in a step-by-step manner, severely constraining students’ creative thinking and influencing students. Speed ​​of problem solving. This article will use several common comprehensive questions as an example to talk about its slightly tricky solution.冽 1. There is a mixture of copper oxide and carbon powder 8.3 grams, fully heated in a test tube to a high temperature, the reaction is no longer occurs after the test tube is still black material, continue to heat hydrogen reduction, and cooling in hydrogen,