作业帮要具体一些!有中文的吗
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要具体一些!有中文的吗
要具体一些!
有中文的吗
要具体一些!有中文的吗
1.The Na+,K+,and NH4+ ions form soluble salts.Thus,NaCl,KNO3,(NH4)2SO4,Na2S,and (NH4)2CO3 are soluble.
Na+、K+、NH4+盐溶
2.The nitrate (NO3-) ion forms soluble salts.Thus,Cu(NO3)2 and Fe(NO3)3 are soluble.
硝酸盐溶
3.The chloride (Cl-),bromide (Br-),and iodide (I-) ions generally form soluble salts.Exceptions to this rule include salts of the Pb2+,Hg22+,Ag+,and Cu+ ions.ZnCl2 is soluble,but CuBr is not.
除了Pb2+/Hg22+/Ag+/Cu+的盐不溶,卤素化合物溶.
4.The sulfate (SO42-) ion generally forms soluble salts.Exceptions include BaSO4,SrSO4,and PbSO4,which are insoluble,and Ag2SO4,CaSO4,and Hg2SO4,which are slightly soluble.
硫酸银、硫酸钙、硫酸亚汞微溶；硫酸钡、硫酸锶、硫酸铅不溶.别的都溶.
Insoluble Salts
1.Sulfides (S2-) are usually insoluble.Exceptions include Na2S,K2S,(NH4)2S,MgS,CaS,SrS,and BaS.
硫化物的溶解情况.Na2S,K2S,(NH4)2S,MgS,CaS,SrS,and BaS这些可溶.
2.Oxides (O2-) are usually insoluble.Exceptions include Na2O,K2O,SrO,and BaO,which are soluble,and CaO,which is slightly soluble.
氧化物基本上不溶.碱金属碱土金属氧化物溶于水发生反应.
3.Hydroxides (OH-) are usually insoluble.Exceptions include NaOH,KOH,Sr(OH)2,and Ba(OH)2,which are soluble,and Ca(OH)2,which is slightly soluble.
氢氧化物一般不溶,除了NaOH/KOH/LiOH、Sr(OH)2/Ba(OH)2可溶、Ca(OH)2微溶.
4.Chromates (CrO42-) are usually insoluble.Exceptions include Na2CrO4,K2CrO4,(NH4)2CrO4,and MgCrO4.
铬酸盐,可以溶的有：Na2CrO4,K2CrO4,(NH4)2CrO4,and MgCrO4.
5.Phosphates (PO43-) and carbonates (CO32-) are usually insoluble.Exceptions include salts of the Na+,K+,and NH4+ ions.
磷酸盐,可以溶的有：Na+,K+,NH4+ ,不溶的磷酸盐变为磷酸氢盐或者二氢盐会变成可溶.
还有口诀：盐的溶解性表
钾钠铵盐硝酸盐,放入水中都不见
硫盐酸盐多可溶,顽固沉淀要记清
碳磷酸盐多不溶,钾钠铵盐才可溶
可溶碱类用五类：钾钙钠铵钡!
注：硫盐酸盐多可溶 中的 硫盐酸盐 指的是硫酸盐和盐酸盐
顽固沉淀指的是：硫酸钡和氯化银
氢氧化钙当然是微溶