Aspirin 係咪得C=C carboxyl group ester group
得ester同carboxylic acid
ring入面果d唔係c=c bond黎
果個叫benzene ring(苯環)
唔算alkene
dse唔學benzene既反應
但要知佢唔係普通double bond
Aspirin 係咪得C=C carboxyl group ester group
點解Crown Ether可以令K+溶到係Organic Solvent到
點解Crown Ether可以令K+溶到係Organic Solvent到
佢個環上面果d O既lone pair可以donate比個K+(dative) 令個K+ stablize左喺中間
我想問下一2018 chem dse有冇部份考核內容有修減or新增?thx
2018retaker
我想問下一2018 chem dse有冇部份考核內容有修減or新增?thx
2018retaker
無
有dative covalent bond?
cracking
呢個set-up係咪書有 好似見過但搵唔翻
cracking
呢個set-up係咪書有 好似見過但搵唔翻
我都知。。
但想溫翻detail
2 only?[img]assets/faces/xm/sosad.gif[/img]
我想問下一2018 chem dse有冇部份考核內容有修減or新增?thx
2018retaker
無
有dative covalent bond?
梗係有
2017先考過3分LQ
Dative covalent個箭咀係點指?
之前見巴打話chemical cells要識6種
我睇書仲有2種,lithium primary cell 同nickel cadmium cell係咪唔考
呢個set-up係咪書有 好似見過但搵唔翻