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化学讨论型计算题是在讨论的基础上进行数学计算,它不仅要求推理严谨、分析全面,而且也要体现计算方法的灵活性、巧妙性.要掌握好讨论型化学计算题的解法,笔者认为应在少、简、活上下功夫.所设变量应尽量的少例1.过渡元素钴具有多种可变化合价,将11.9克CoCO_3在纯氧中加强热,可得8.3克钴的氧化物.通过计算,试写出CoCO_3在纯氧中受强热后发生反应的化学方程式.
The chemical discussion type calculation problem is based on the discussion of mathematical calculations, it not only requires rigorous reasoning, comprehensive analysis, but also to reflect the flexibility of the calculation method, skillfulness. To grasp the solution of the discussion of chemical calculation problems, the author believes that Should be less, simple, work hard. The set of variables should be as few as possible. 1. The transition element cobalt has a variety of varying valence, 11.9 grams of CoCO_3 heat in pure oxygen, available 8.3 grams of cobalt oxide. Through calculations, try to write out the chemical equation for the reaction of CoCO_3 after intense heat in pure oxygen.