2021年湖北省黄石市中考化学试题（解析版）
【内容简介】1. 下列诗句中不涉及化学变化的是A. 千锤万凿出深山 B. 化作春泥更护花C. 蜡炬成灰泪始干 D. 爆竹声中一岁除【答案】A【解析】 详解】A、千锤万凿出深山只是物质形状的变化，没有生成新物质，物理变化；B、化作春泥更护花，涉及物质的腐败，生成新物质，化学变化；C、蜡炬成灰泪始干，蜡烛燃烧生成二氧化碳和水，化学变化；D、爆竹声中一岁除，涉及燃烧、爆炸，化学变化。故选A。2. 化学与我们的生活息息相关下列说法错误的是A. 缺钙会导致骨质疏松 B. 贫血的人补充的铁越多越好C. 人体所需的热量主要来自糖类 D. 吃水果蔬菜可以补充维生素【答案】B【解析】【详解】A、老年人缺钙会导致骨质疏松，幼儿及青少年缺钙会患佝偻病，不符合题意；B、贫血可补充铁元素，但是不是越多越好，应适量，符合题意；C、人体所需的热量主要来自于糖类，糖类是主要的供能物质，不符合题意；D、水果、蔬菜富含维生素，不符合题意。故选B。3. 下列物质按照混合物、碱、氧化物顺序排列的是A. 冰水混合物、苛性钠、二氧化锰 B. 液化石油气、熟石灰、二氧化硫C. 食盐水、纯碱、干冰 D. 天然气、氢氧化钾、大理石【答案】B【解析】【详解】A、冰水混合物，属于纯净物，A错误。B、液化石油气含有多种物质属于混合物，熟石灰是氢氧化钙属于碱，二氧化锰两种元素组成且含有氧元素，属于氧化物，B正确。C、纯碱是碳酸钠，属于盐，C错误。D、大理石主要成分是碳酸钙，大理石属于混合物，D错误。故选：B。4. 下列有关化学用语的说法正确的是A. 2N2表示4个氮原子 B. Cl-中的“-”表示氯元素的化合价为-1价C. 表示一个碳酸根 D. H既可以表示氢元素，也可以表示一个氢原子......
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- 上一份试卷：2021年湖北省恩施州中考化学试题（原卷版）
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