[DSE化學2018]同學準備好DSE CHEM未? (2)

記3rd period oxide only

H2S 係hydride ?
Hydride 係 H- wow
AlH4- 係covalent hydride 個H- donate 去 Al 到喎

Agger
AlH4-自己係ion唔等如Al-H bond係ionic

All carbons in graphene are sp2 hybridised with one delocalised electron per carbon
仲有benzene既C-C bond同一般既C-C double bond係唔同嫁
Bond length of benzene C-C > trivial C-C double bond

Al-H bond in AlH3 一樣係covalent

AlH3 係 covalent bond 嚟
會form dimer Al2H6 有 3 Center 2 e bond

你地都唔駛識benzene
唔駛理佢

上面講堆野基本上無一樣係DSE
唔該 用返dse level既語言同例子去講
唔係話唔討論得 但起碼唔係考DSE前三個月黎討論呢d野

老實講呢個post好少人真係考DSE 我自己係master grad 宜家做緊ra同報緊PhD

Graphene唔係DSE嫁 benzene係啦掛