精品解析:2022年江苏省扬州市中考化学真题(原卷版)
扬州市2022年初中毕业、升学统一考试化学试题可能用到的相对原子质量:H-1C-12N-14O-16Na-23S-32Cl-35.5Ca-40一、单项选择题:本题包括15小题,每小题2分,共计30分。每小题只有一个选项符合题意。1.“航天点亮梦想”。搭载神舟飞船的火箭常用液氢作燃料,液氢的化学式是A.H2B.CH4C.COD.NH32.扬州中国大运河博物馆生动还原了大运河的历史场景。下列过程涉及化学变化的是A.开凿河道B.裁制船帆C.炼铁铸锚D.伐木造桨3.节约用水是保护水资源的有效途径。适合张贴在学校水龙头旁的标识是A.B.C.D.4.自热食品的发热包中含有CaO,它属于A.酸B.碱C.盐D...
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