alkali係metal hydroxide and metal oxide?
咁base係咩??
我唔明呀!唔該詳盡d解答我!tks!
更新1:
但唔係metal hydroxide 唔容於水架咩?why佢係alkali
CHEM!!唔明!
2007-03-03 5:00 am
我想問base同alkali既分別。
alkali係metal hydroxide and metal oxide?
咁base係咩??
我唔明呀!唔該詳盡d解答我!tks!
alkali係metal hydroxide and metal oxide?
咁base係咩??
我唔明呀!唔該詳盡d解答我!tks!
回答 (2)
2007-03-04 8:43 pm
✔ 最佳答案
by definition, base is a species which react with acid to give salt and water ONLY.Therefore metal oxides and hydroxides are bases.
some bases are soluible in water, e.g. group 1 hydroxides.
those soluble in water are called alkalis.
參考: ce chem
2007-03-03 5:10 am
所有alkali都係base
不過base唔一定係alkali
alkali係溶到水o既base
base係包括metal hydroxide,metal oxide, aqueous ammonia NH3(aq)
2007-03-03 21:40:22 補充：
有d metal hydroxide可以溶o係水例如NaOH,KOH,Ca(OH)2..溶o係水o既metal hydroxide因為被離子化,出現alkali o既特性
不過base唔一定係alkali
alkali係溶到水o既base
base係包括metal hydroxide,metal oxide, aqueous ammonia NH3(aq)
2007-03-03 21:40:22 補充：
有d metal hydroxide可以溶o係水例如NaOH,KOH,Ca(OH)2..溶o係水o既metal hydroxide因為被離子化,出現alkali o既特性
參考: 中四化學知識
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