2020浙江省湖州市中考化学真题及答案
2020浙江省湖州市中考化学真题及答案题号一二三四总分得分一、单选题(本大题共5小题,共15.0分)1.下列实验操作中,规范的是( )A.滴加液体B.点燃酒精灯C.显微镜调焦D.称量液体的质量2.如图是一定量的B2和AB在一定条件下混合以及混合结果的模型,则( )A.反应得到的生成物有两种B.反应前后元素化合价不变C.参加反应的两种分子个数比为3:2D.该反应为化合反应3.除去下列物质中混有的少量杂质,下列方案不可行的是( )选项物质杂质方案ACu粉Zn粉加入足量CuCl2溶液后过滤、洗涤、干燥BCO气体CO2气体通过足量的氢氧化钠溶液后干燥CNaCl固体Na2CO3固体加入足量的稀盐酸...
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