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12歲有得讀CHEM架咩
住邊

btw

我上網問左人
唔知岩定錯

ai)the rate of reaction increase
aii)decrease

得咁多咋

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引用:
原帖由 mwlc331 於 2012-2-26 12:03 發表
year 12 not = 12 years old -.-
btw thz a lot
how about part b ?
睇錯



我等緊人答埋
你等等

a part岩唔岩??

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b)decrease of concentration of so**粗俗文字**m thiosulfate will lower the chance for effective collision as the number of reactant molecule so**粗俗文字**m thiosulfate decrease.Decrease the temperature will lower the rate of reaction as the average KE of reactant molecules decrease,they move in lower speed and collide less frequently,thus the
chance for effective collision decrease.Also,there will be less portion of molecules have enough activation energy to allow the reaction occur,thus the chance for effective collision decrease,rate of reaction decrease.

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so d i u m

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其實我都唔明
我上網問人

aii exothermic reaction, Temp. increase 好似係Kc shift to R.H.S.

increase

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唔洗
我唔答你等到下年vlan都冇人會幫你答

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水區風氣

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引用:
原帖由 edisonkiller 於 2012-2-26 12:28 發表

呢家有d學校為左方便日後教程 預先教chem bio phy
同埋比學生有個清晰既印象去選科
咁爽

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引用:
原帖由 mwlc331 於 2012-2-26 12:25 發表
sad but true lol

next time help me again ok ? >
有問題先算啦

pm我

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