化学中物质的分类是怎样分的?尤其是酸碱盐的分类!(详细!)

2025-03-15 11:03:34
推荐回答(1个)
回答1:

酸有两种分类方法:
一、按有无氧元素分为无氧酸和含氧酸
无氧酸:不含氧元素,命名称为“氢某酸”,
例hcl
氢氯酸,含氧酸:含氧元素,命名时除去氢、氧外,用第三种元素的名称命名为“某酸”

例:
h
2
so
4
--硫酸
二、按酸分子电离时产生氢离子的数目:

一元酸:一个酸分子电离出一个h
+
,例hcl、hno
3

二元酸:一个酸分子电离出二个h
+
,例h
2
so
4
、h
2
co
3

三元酸:一个酸分子电离出三个h
+
,例h
3
po
4

盐的分类有很种:
1.含氧酸盐是指含氧酸对应的盐,例如h2so4对应的na2so4。还有如na3po4.

无氧酸盐是指无氧酸对应的盐,例如h2s对应的na2s。还有如nacl.

2.正盐:酸碱完全中和的产物。
比如:nacl

酸式盐:阳离子中含有氢离子的盐。
比如:nahso4

碱式盐:阴离子中含有氢氧根离子的盐。
比如:cu2(oh)2co3

复盐:由两种或两种以上的简单盐类组成的同晶型化合物,叫做复盐。复盐又叫重盐。复盐中含有大小相近、适合相同晶格的一些离子,如
明矾(硫酸铝钾)kal(so4)2·12h2o

混盐:是指一种金属离子可以分为可溶性碱(除了tioh外都是强碱),和不溶性碱(都是弱碱)
但也有新理论提出反应中接受质子的都是碱
有帮助于排空消化道的碱------不只道是不是mg(oh)2,因为mgso4是泻盐,水解~
用与制造肥皂的碱------naoh
用与洗镜框或玻璃用的碱-----不清楚,但强碱都要和sio2反应的
农业上用于做化肥或医用的碱-----一水合氨(nh3.h2o弱碱)

作为建筑材料的碱-----ca(oh)2
熟石灰
与多种酸根离子所构成的盐。如氯化硝酸钙
ca(no3)cl

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