2025.1楂樹笁鍖栧 绛旀
2025年1月葫芦岛市普通高中期末考试高三化学参考答案及评分标准一、选择题(每小题3分,共45分)1.D2.C3.B4.A5.D6.B7.C8.B9.D10.D11.A12.C13.C14.B15.D二、非选择题(共55分)16.(14分)(1)①第四周期第ⅡA族(1分);②3d104s1(1分)(2)增大固体与液体接触面积,使反应更充分,反应速率更快(2分)(3)2222MnO4H2ClMnCl2HO+-+D++++,浓盐酸具有还原性(2分)(4)“除钙”若用H2SO4会生成挥发性的盐酸,污染空气,而选用(NH4)2SO4生成NH4Cl,对环境无污染,且下一步“沉铁”时还可以减小氨水的用量...
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