Yr 11 Chem (1 Viewer)

[queenie]

for those who have jus finished, any1 willing 2 lead a helpin hand 2 help me in chap 1 chem.. (the chemical earth) to answer a few questions for an assignment??

 

[Althea]

What questions do you need help with?

If you haven't already got it, 'Conquering Chemistry: Preliminary Course' by R. Smith is a great reference...

-> Althea <-

 

[victorling]

i am willing to help too
^_^

 

[xiao1985]

Originally posted by queenie
for those who have jus finished, any1 willing 2 lead a helpin hand 2 help me in chap 1 chem.. (the chemical earth) to answer a few questions for an assignment??

queenie?? i thought u r a hsc er this yr!!! well in bio forum u certain sounds lyk a hscer... ??

 

[t-i-m-m-y]

Originally posted by victorling
i am willing to help too
^_^

haha; i can see where this is heading dude

Originally posted by xiao1985
queenie?? i thought u r a hsc er this yr!!! well in bio forum u certain sounds lyk a hscer... ??

he/she accelerated bio i believe
and queenie; i chucked out my year 11 stuff, i didn't give it away oh wait lemme see

 

[kimmeh]

queenie, maybe you should post the question ? BOS memebers are always more than happy to help

 

[queenie]

lol yea man im acceleratin in bio so im doin yr 12.. but im in yr 11 technically this yr.. thanks for sortin things out timmy

the questions are basically straight out dot points from module 1; prelim chem and are as follows:

- describe metals as 3D lattices of ions in a sea of electrons.. (ah-hem.. describe?)
- describe ionic compoundsin terms of repeating 3D lattices of ions
- explain why the formula for an ionic compound is an empirical formula..

thanks heaps u guys.. and um timmy? he/she.. queenie.. im a S H E .

 

[queenie]

lol ive got conquerin chem and um.. chem contexts.. ive tried them .. and tankz for all the help timz..hehe.. but i dnt blame u for chuckin out ur prelim stuff.. no1 keeps that crap anyway

 

[Xayma]

ok the formula for an ionic compound is empirical because it doesnt form diatomic molecules or hexatomic etc. It forms a lattice of them that continues until the edge of the grain of salt or whatever.

 

[abdooooo!!!]

Originally posted by queenie
- describe metals as 3D lattices of ions in a sea of electrons.. (ah-hem.. describe?)
- describe ionic compoundsin terms of repeating 3D lattices of ions
- explain why the formula for an ionic compound is an empirical formula..

look at this people my answers:

- metal are 3D lattice ions of a sea of delocalised electrons.

- ionic compound are repeating 3D lattices of ions bonded together by their ionic charges. lol

- emperical formula = a fancy term for ratio formula. this is because ionic compounds are not composed of discrete molecules... hence we must write in its most simple term. ie "molecular formula" does not exist. the above question about 3D lattice already answered this one.

ahaha this is funny... hsc.

 

[queenie]

yep dude, they were pretty much *my* answers... then i showed em 2 the teacher, and shes like D E S C R I B E... and im like..erm ok

 

[xiao1985]

Originally posted by queenie
yep dude, they were pretty much *my* answers... then i showed em 2 the teacher, and shes like D E S C R I B E... and im like..erm ok

lolz, omg, ur teachers are retarded...

Originally posted by queenie
lol yea man im acceleratin in bio so im doin yr 12.. but im in yr 11 technically this yr.. thanks for sortin things out timmy

the questions are basically straight out dot points from module 1; prelim chem and are as follows:

- describe metals as 3D lattices of ions in a sea of electrons.. (ah-hem.. describe?)
- describe ionic compoundsin terms of repeating 3D lattices of ions
- explain why the formula for an ionic compound is an empirical formula..

thanks heaps u guys.. and um timmy? he/she.. queenie.. im a S H E .

metals consists of cations forming a lattice and surrounded by a sea of delocalised electrons... the lattice is held my electro static attraction between the cation and the sea of electrons...( well, since ur teacher is lyk DESCRIBE, so doens't hurt to shove this in...)

well, other questions, abdooooo pretty much answered it... ^^