广西玉林市防城港市2015年中考化学真题试题(含扫描答案)
2015年玉林市防城港市初中毕业暨升学考试化学一、相信你的选择(本题包括20小题,每小题2分,共40分,每小题只有一个选项符合题意)1.下列变化属于化学变化的是()A.轮胎爆炸B.冰雪融化C.葡萄酿成酒D.萝卜切成丝2.空气的成分按体积计算,大约占78%的是()A.氮气B.氧气C.稀有气体D.二氧化碳3.下列物质属于混合物的是()A.冰水B.液态氧C.氯酸钾D.加铁酱油4.今年6月起,北京实施“史上最严”控烟令。下列图标表示“禁止吸烟”的是()5.从分子的角度解释“湿衣服晾干”,下列说法错误的是()A.水分子在不断运动B.水分子之间的间隔变大C.水分子本身不发生变化D.水分子的体积变大6.下列...
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