Metal oxide

👨🏻‍🏫 學術台化學

Douglas

2007-01-11 4:17 am

Why metal oxide dissolve in water will form a slightly alkaline solution although it is insoluble in water?

更新1:

I mean, will some metal oxide ,which is completely insouble in the water , such as MgO , form a slightly alkaline solution after you put it in a glass of water?

回答 (2)

SiLence_Kei

2007-01-11 8:01 am

✔ 最佳答案

It is because when the metal oxide reacts with water,hydroxide ions (OH-) has formed,so it will form a slightly alkaline solution,although that chemical is slightly soluable,like Calcium Hydroxide {Ca(OH)2}

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用戶4366

2007-01-11 5:40 am

What do you mean by an insoluble metal oxide dissolve in water .......
How can an insoluble metal oxide dissolve in water? can you give an example?

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