2015年武汉市中考化学试卷及答案
2015年武汉市中考化学试题可能用到的相对原子质量:H-1C-12O-16Na-23S-32Ca-40Cu-64一、选择题(本题包括8小题,每小题只有一个选项符合题意,每小题3分,共24分)1.下列变化属于化学变化的是()A.车胎爆炸B.高粱酿酒C.玻璃破碎D.干冰升华2.下列说法正确的是()A.经常用水冲洗自行车可以防锈B.空气主要由氮气和氧气组成C.用活性炭可以降低水的硬度D.铁合金是一种纯净物3.下列做法中错误的是()A.为减少白色污染,少使用塑料袋B.倡导低碳生活,多步行,少开车D.油锅着火时盖上锅盖灭火D.用氢氧化钠改良酸性土壤4.下列说法中正确的是()A.食用“地沟油”对人体有害B...
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