Need help for chemistry unit 1? Edexcel
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khiljidanial
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#1
Does anyone need help for chemistry unit 1? for A level IAL edexcel?
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sonam_28
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khiljidanial
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sonam_28
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#4
(Original post by khiljidanial)
CH4 + Cl2-----> CH3Cl + HCl
CH4 + Cl2-----> CH3Cl + HCl
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khiljidanial
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#5
Always remember that for enthalpy change Bonds broken - Bonds formed. So here its:
Enthalpy change= (242+4+(-97)) - (-339)=+488 KJ/MOL
Enthalpy change= (242+4+(-97)) - (-339)=+488 KJ/MOL
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SOREN_TORETTO
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Loody Nagy
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#7
Can you tell me what's the most repeated questions so that I can focus on them. I dont know what to study actually.
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khiljidanial
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#8
Well don't know exactly but if you are better in solving unit 3 paper then just study mechanism of alkanes and alkenes.
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khiljidanial
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#9
If you have that sky blue edexcel book of As chemistry then read chp: 2, 3, 4, 7 because most of the paper is from these chapters.
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khiljidanial
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#10
(Original post by SOREN_TORETTO)
i dont understand lattice enthalpy
i dont understand lattice enthalpy
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Loody Nagy
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#11
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