How is your preperation for Chem Unit 2 ???

[xIshtar]

thnk you allot ! can u plz give me n example =$

London Forces are the forces resulting from the uneven distribution of electrons. This means that it causes temporary dipoles, which then results in induced dipoles.

Hmm.. An example :S

 

[z3r0thunder]

Only Methyl Orange, Litmus and Phenopthalein

 

[Wearewhoweare]

ya i got that thank you !
but how would we know whats the most stable metal carbonate ??[/qu
The stability increases down the group for metal carbonates because as you go down the group the cation ion increases in size and becomes less polarising, the the C-O bond gets stronger. So least stable is Be and most stable Ra in group 2

 

[DANGERBP]

Hmm. Whoa, oops, I got them the wrong way round, yeah you're totally right

hahah okay m not gonna show off much r8 now =p =p its the first time i get somethin r8 in studies =p

 

[DANGERBP]

Only Methyl Orange, Litmus and Phenopthalein

uh thank you so much ! =)

 

[z3r0thunder]

London Forces are the forces resulting from the uneven distribution of electrons. This means that it causes temporary dipoles, which then results in induced dipoles.

Hmm.. An example :S

An example can be CH4

 

[DANGERBP]

thnk you allot ! seriosly
hey do u know why iodobutane has a higheer boiling point than chlorobutane ?

 

[DANGERBP]

An example can be CH4

london forces forms induced dipoles ?

 

[rose rose]

What is an initiator??

 

[durr]

thnk you allot ! seriosly
hey do u know why iodobutane has a higheer boiling point than chlorobutane ?

iodine has more electrons, so more stronger london forces

london forces forms induced dipoles ?

yes, instantaneous dipole- induced dipole interactions. learn all the names of london forces.

 

[durr]

in this paper: http://www.edexcel.com/migrationdoc...2000/June 2011 - QP/6CH02_01_que_20110527.pdf
question 19 part b iii
what's the answer? I wrote H2, and did the balancing, but in mark scheme, water is the other product not h2
http://www.edexcel.com/migrationdoc...2000/June 2011 - MS/6CH02_01_rms_20110817.pdf

and in the ER, http://www.edexcel.com/migrationdoc...2000/June 2011 - ER/6CH02_01_pef_20110817.pdf
the answer is h2...

what's the correct answer? is it H2O or H2?

 

[DANGERBP]

iodine has more electrons, so more stronger london forces


yes, instantaneous dipole- induced dipole interactions. learn all the names of london forces.

oh shit thts why ?? so we don look at the electronegativity or nythin just the number of es ? mm do we look at the size too ?

ugh your fukin kiddin me man !!!!! wat fukin names ?? -.-

 

[durr]

if it's about boiling temperature, then look for intermolecular forces (hydrogen bonds, london forces, and permanent dipole-dipole)

names...
London forces, dispersion forces, instantaneous dipole- induced dipole interactions, temporary induced dipole-dipole. also van dar waal

 

[DANGERBP]

in this paper: http://www.edexcel.com/migrationdocuments/QP GCE Curriculum 2000/June 2011 - QP/6CH02_01_que_20110527.pdf
question 19 part b iii
what's the answer? I wrote H2, and did the balancing, but in mark scheme, water is the other product not h2
http://www.edexcel.com/migrationdocuments/QP GCE Curriculum 2000/June 2011 - MS/6CH02_01_rms_20110817.pdf

and in the ER, http://www.edexcel.com/migrationdocuments/QP GCE Curriculum 2000/June 2011 - ER/6CH02_01_pef_20110817.pdf
the answer is h2...

what's the correct answer? is it H2O or H2?

where the **** did they bring that stupid eqation from !!! i never been across it -.- !!! shit m so screwed !!! ughh

 

[DANGERBP]

if it's about boiling temperature, then look for intermolecular forces (hydrogen bonds, london forces, and permanent dipole-dipole)

names...
London forces, dispersion forces, instantaneous dipole- induced dipole interactions, temporary induced dipole-dipole. also van dar waal

so just the electrons ! ?

ughhh wat r these man !!! your freakin me out !!!! do we need to know the difference ?

 

[xIshtar]

in this paper: http://www.edexcel.com/migrationdocuments/QP GCE Curriculum 2000/June 2011 - QP/6CH02_01_que_20110527.pdf
question 19 part b iii
what's the answer? I wrote H2, and did the balancing, but in mark scheme, water is the other product not h2
http://www.edexcel.com/migrationdocuments/QP GCE Curriculum 2000/June 2011 - MS/6CH02_01_rms_20110817.pdf

and in the ER, http://www.edexcel.com/migrationdocuments/QP GCE Curriculum 2000/June 2011 - ER/6CH02_01_pef_20110817.pdf
the answer is h2...

what's the correct answer? is it H2O or H2?

H2 is the correct answer in my eyes.

 

[xIshtar]

so just the electrons ! ?

ughhh wat r these man !!! your freakin me out !!!! do we need to know the difference ?

He just gave you different names for Van Der Waals forces.

The electrons affect London Forces, and thus the more electrons, the stronger the force.

 

[DANGERBP]

methanol reacts with Na ! so the bubbles tht form r wat ?? OH is the product ? n r all metal hydrocarbons white ppt ?

 

[durr]

H2 is the correct answer in my eyes.

that's what I think, because Metal + acid --> salt + hydrogen

 

[DANGERBP]

He just gave you different names for Van Der Waals forces.

The electrons affect London Forces, and thus the more electrons, the stronger the force.

oh so just names i could use any r8 ?

oh umm but isnt chlorine n bromine has the same no. of electrons ?? why is iodobutane with a higher bt