chemistry stuff...

[evil^milk]

hey, i need some guidance on my chemistry homework :dork:

first... i need to know the difference between:

a) nuetral salts
b) and oxysalts (don't know what they're called in english, but they're salts with... oxygen)

next, i need to know how to balance compounds such as these:

FeO + H2O -> Fe(OH)2
HBrO + Fe(OH) 2 -> FeBrO2 + H2O

sorry... but the teacher doesn't know how to teach, and my friends don't know how to get to the point i'm at, so i'm pretty much by myself

and if anyone could help, i'd greatly appreciate it

 

[baron insig]

Basically balancing is aimed at equalizing both sides of the equation eg if you have 2 hydrogen and 1 oxygen you can make one molecule of h20 so to balance out the equation draw it out and follow it thru really easy jsut requires thinking about it i know how you feel i was like wtf when i first saw this

the first one i think is already balanced your probably tihnking why is it hw then but it happened me aswell infact both quations to me are already balanced :s what level is this ?? gcse /a level ??

Links that could be useful

www.google.com

http://www.wfu.edu/~ylwong/balanceeq/balanceq.html

http://www.chemistry.ohio-state.edu/betha/nealChemBal/frb1.2.html

http://www.chemistrycoach.com/baleq.htm

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Tbh just google it and iff you are really stuck read your textbook if you have one!

 

[Lil' Timmy]

well, it's been a long time since i've had chem.. so bear with me..

iirc, a neurtal salt is a salt formed from a strong acid and a strong base like soda and hydrochloric acid:
NaOH + HCl -> Na(+) + Cl(-) + H2O

and acid salt would be from a weak base and strong acid; a basic salt would be from a strong base and a weak acid.

oxysalts, iirc, are, as you said, just salts with O. usually, these are made with a metal oxide reacts with a non-metal oxide (i think these are usually sulfates):
CaO + SO3 -> CaSO4 (oxysalt)

afaik, oxysalts can be neutral, basic, or acid salts too.

the two reactions you showed are already balanced.. maybe i'm misunderstanding you?

edit: oh the second one isn't balanced, yeah just follow joims' links.

 

[evil^milk]

that interactive tutorial was great. thanks timmy and joims :E

although i don't know what you mean with the levels... 10th grade?

edit: so then... oxysalts can be neutral/acid/basic salts?

how can i find out if an acid/base is strong?

 

[baron insig]

Using Universal Indicator or if your a fancy f***er a ph metre but universal indicator is what got me an A in the uk

Basically universal indicator is just a liquid that will change colour if it is mixed with an acidic of an alkali material
blue/purple for alkailis
red/orange for acids

http://www.epa.gov/acidrain/site_students/images/phscale.gif

piccy of all the purty colours it can change too

 

[dfc05]

that interactive tutorial was great. thanks timmy and joims :E

although i don't know what you mean with the levels... 10th grade?

edit: so then... oxysalts can be neutral/acid/basic salts?

how can i find out if an acid/base is strong?

Acids/bases are strong if they completely dissociate into ions. For example HCl is a strong acid because the dissociation is so high that most all the H+ ions are liberated, whereas HF is not strong because some of the HF remains as HF and not all dissociates into H+ and F- in water.
Same with bases -- NaOH is strong because most all OH- ions are liberated whereas something like Al(OH)3 would be weak since some stays in Al(OH)3 form.
Usually you just memorize all the strong acids and bases -- HCl, HBr, HI, HNO3, H2SO4, HClO4.... LiOH, NaOH, KOH, Ca(OH)2, Sr(OH)2, and Ba(OH)2.... which is easier to remmeber if you've got a periodic table.