2018年中考化学真题分类汇编2我们身边的物质考点10碳和碳的化合物2二氧化碳综合流程图(无答案).doc

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1碳和碳的化合物(18 衢州)35.科学家尝试通过多种途径减少 CO2的排放,或将 CO2转化为有用的物质。其中一种途径是利用 NaOH 溶液来“捕捉”CO2,并将 CO2储存或利用,反应流程如图所示。(1)反应分离室中分离物质的操作是_。(2)上述反应流程中,可循环利用的物质是_。(3)若反应分离室中有辩质质量分数为 10.6%的 Na2CO3溶液 100 千克。求完全反应后,理论上可生成 CaCO3的质量(要求根据化学方鬼式计算)。

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