AQA - Unit 5 - Energetics, Redox and Inorganic Chemistry

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Reply 1220

kingsmod1

Original post by Master.K

Gonna fail. :frown:

no ur not lol
jus practice lol

Reply 1221

al_habib

what are the key points we need to knw on trends in lattice enthalpy?
larger ions lead to smaller lattice enthalpy because opposite charges do not approach each other as closely when the ions are larger. what else to remember?

(edited 12 years ago)

Reply 1222

Jin3011

Original post by kingsmod1

no ur not lol
jus practice lol

Why are you writing so big?

Reply 1223

kingsmod1

Original post by Jin3011

Why are you writing so big?

why u writing so small?

Reply 1224

Jin3011

I'm just gona write all equations out by memory now.

Reply 1225

Jin3011

Original post by kingsmod1

why u writing so small?

Come at me brah! :devil3:

Reply 1226

kingsmod1

Original post by Jin3011

Come at me brah! :devil3:

thats what she said

Reply 1227

Jin3011

Original post by kingsmod1

thats what she said

Reply 1228

kingsmod1

Original post by Jin3011

so wat did u get in chem 4 bruv?

Reply 1229

Jin3011

Original post by kingsmod1

so wat did u get in chem 4 bruv?

112/120
How about you?

Reply 1230

al_habib

Original post by Jin3011

I'm just gona write all equations out by memory now.

go on start with Fe

Reply 1231

Jin3011

Original post by al_habib

go on start with Fe

What about Fe? lol
I'm writing them all down on paper, starting from periodicity.

Reply 1232

Jin3011

Anyways guys. I'm gon'a go get ready for college now.
All the best!
Cya after the exam =]

Reply 1233

Sparkly-Star

I still don't know my battery stuff very well, anyone care to summarise? :frown:

Reply 1234

kingsmod1

Original post by Jin3011

112/120
How about you?

wow nice, i got 85

Reply 1235

al_habib

Original post by Jin3011

Anyways guys. I'm gon'a go get ready for college now.
All the best!
Cya after the exam =]

Reply 1236

colabottles

Original post by Sparkly-Star

I still don't know my battery stuff very well, anyone care to summarise? :frown:

The books and the spec specify that we just need to appreciate them :tongue:

I think we need to know adv/disadv tho - like Mercury in the Mercury cell is toxic, Alkaline/Lithium cells are long life, rechargeable fuel cells aren't very practical in cars, and probably that primary = non-rechargable and secondary = chargable? That's all I know!

Reply 1237

Sparkly-Star

Ok never mind batteries I'm still confused on Born Haber Cycles anyone got a quick way to do it without drawing it?

Reply 1238

jimmy303

Good Luck today everyone :smile:

Reply 1239

M | k e

Original post by Sparkly-Star

Ok never mind batteries I'm still confused on Born Haber Cycles anyone got a quick way to do it without drawing it?

Do it in your head? :P

Hope the Aluminium questions don't come up, seen few posts on this topic about it. And my book says [Al(H20)2(OH)4]-, another one says [Al(OH)4]- and then the markscheme when it came up in a paper said [Al(OH)6]3-. God knows which is right.

Glad biology went well as this could be a shocker :biggrin: