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2018年中考化学真题分类汇编4化学与社会发展考点20燃烧与燃料综合（无答案）.doc

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1考点 20 燃烧与燃料（18 河南）16.乙醇完全燃烧的化学方程式为_；高压水枪灭火所依据的灭火原理是_；氢气作燃料的优点是_(答出一条即可)。

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