2010北京海淀中考一模讲解化学

linaijia142022-10-04 11:39:541条回答

2010北京海淀中考一模讲解化学
甲乙丙丁四种物质转化关系为:甲-乙-丙-丁-甲,则甲乙丙丁依次是
A.C CO CO2 H2CO3 B.CO CO2 H2CO3 C C.CaO Ca(OH)2 CaCl2 CaCO3 D.CaCO2 Ca(OH)2 CaCl2 CaO
若反应,请写出相关化学方程式,若不反应,请说明理由

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aimeizi52086 共回答了20个问题 | 采纳率85%
c
cao+h2o=ca(oh)2沉淀
ca(oh)2+2hcl=cacl2+h20
cacl2+na2co3=cacao3+2nacl
caco3=cao+co2气体
1年前

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