2018年中考化学真题分类汇编2我们身边的物质考点14酸碱盐和氧化物9化学性质通性2碱的通性(无答案).doc

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1酸碱盐和氧化物(18 重庆 B)10.氢氧化钠离液和氨水都能使酚酞溶液变红,其原因是二者的溶液中均含有义种相同的粒子是A.H+ B.OH- C.H2O D.H(18 长春)21为验证 Ba(OH)2的化学性质做如图所示的四个实验:(1)实验一中能够观察到的明显现象是 ;(2)实验二、三验证了 Ba(OH)2能和某些 (填物质类别)发生化学反应;(3)实验四中发生反应的化学方程式为 ;(4)讲上述实验后四支试管中的所有物质倒入同一个烧杯,充分混合后过滤,得到白色固体和溶液 A。取一定量溶液 A,加入少量 Ba(OH)2溶液,振荡后只得到无色溶液,综上分析,溶液 A 中除酚酞外,一定还含有的溶质是 。

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