山东省日照市2015年中考化学真题试题(含答案)
山东省日照市2015中考化学试题一、选择题(每小题2分,共20分)1.下列实验方案不涉及化学变化的是()A.用肥皂水区分硬水和软水B.用干冰进行人工降雨C.用食醋除去暖水瓶中的水垢D.用点燃的方法区分棉线、羊毛线和腈纶线2.下列图示的实验操作正确的是( ) A.稀释浓硫酸 B.测定溶液pHC.过滤D.验证酸碱中和反应3.下列叙述I和II都正确且有因果关系的是()选项叙述I叙述IIA碳具有还原性焦炭可以还原四氧化三铁B分子之间有间隔浓氨水和浓盐酸接近时“空中生烟”C人体碘元素摄入量不足易患有骨质疏松症D二氧化碳不支持燃烧二氧化碳能使澄清石灰水变浑浊4.实验室有失去标签的四种化肥,...
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