alkali 係咪insoluble??

👨🏻‍🏫 學術台化學

用戶128129

2008-05-04 1:24 am

alkali究竟係咪insoluble黎嫁??
base that are soluble in water called alkali.
metal hydroxide就insoluble,但hydroxide & oxide of metals are calle base.
咁即係點呀??alkali係咪soluble嫁???

更新1:

potassium hydroxide,sodium hydroxide呢d都係alkali,但呢d係咪soluble嫁?? 咁究竟alkali係咪soluble in water????

回答 (2)

[匿名]

2008-05-04 3:52 am

✔ 最佳答案

概念錯誤！

1. 鹽基即是金屬氫氧化物或氧化物
Base is hydroxide or oxide of metal

2. 鹽基有可溶，有不可溶
Base can be soluble or insolube

3. 可溶的鹽基稱為鹼
The base that is soluble in water called alkali

4. 鹼的例子有氫氧化鉀 (KOH)、氫氧化鈉 (NaOH)、氨 (NH3 / NH4OH)
The example of alkalis include potassium hydroxide, sodium hydroxide and ammonia

2008-05-04 10:33:25 補充：
都話可溶的鹽基稱為鹼，咁鹼就緊係可溶啦，KOH、NaOH、NH3呢啲可溶於水，佢地咪係鹼囉...

參考: 極端民族主義者

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用戶7369

2008-05-04 2:38 am

you have said something wrong. you said
"metal hydroxide就insoluble". it is not right. potassium hydroxide,
sodium hydroxide and ammonium hydroxide are soluble in
water. hydroxide and oxide of metals are called base. it is
right. base that are soluble in water is called alkali. it is right.

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