2020浙江省温州市中考化学真题及答案
2020浙江省温州市中考化学真题及答案1.新鲜果汁是常见的饮料,下列四种饮料呈弱碱性的是A.柠檬汁B.苹果汁C.西瓜汁D.玉米汁2.伏打电堆于1800年问世,它利用化学反应将化学能转化为电能,其中的一条化学反应是:,该反应属于A.化合反应B.分解反应C.置换反应D.复分解反应3.中医药在治疗新冠肺炎中,为全球抗击疫情贡献了中国智慧。下列中药煎制步骤与实验室过滤操作原理相同的是A.冷水浸泡B.加热煎制C.取液弃渣D.装袋保存4.银器在使用过程中,因为发生化学反应:,产生的使银器逐渐失去光泽。已知银的化合价为价,则中S的化合价为A.B.C.D.5.茶是人类健康的饮品之一,联合国将今年5月21日定为...
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