Search found 53 matches
- Thu Aug 07, 2008 12:45 pm
- Forum: Chemistry forum
- Topic: TOXIC!!!!
- Replies: 3
- Views: 4862
- Tue Apr 22, 2008 7:56 am
- Forum: Chemistry forum
- Topic: science fair help! equations.
- Replies: 1
- Views: 8652
Re: science fair help! equations.
1. NaHSO4 + Al(OH)3 = NaOH + AlSO4 + H2 That is not correct. NaHSO4 + Al(OH)3 = Na2SO4 + Al2(SO4)3 + H2O Use balancer to balance this equation: http://www.webqc.org/balance.php 2. What would be a good chemical formula for whole milk? Milk is not a one compound - it's a mixture of many: water, fats,...
- Wed Mar 05, 2008 9:11 am
- Forum: Chemistry forum
- Topic: I NEED HELP!!!!!!!!!!
- Replies: 1
- Views: 3901
Was it in a acidic environment?
If so, here is what happened:
http://www.webqc.org/balance.php?reacti ... %293%2BH2O
If so, here is what happened:
Code: Select all
2 KMnO4 + 10 FeSO4 + 8 H2SO4 = K2SO4 + 2 MnSO4 + 5 Fe2(SO4)3 + 8 H2O
- Wed Mar 05, 2008 9:08 am
- Forum: Chemistry forum
- Topic: Equation, please (MoS2 + H2O2)
- Replies: 1
- Views: 4254
Re: Equation, please (MoS2 + H2O2)
We test some medical device using MoS2 and H2O2, but something was happened. two chemicals were vigrously reacted with heat, like a hot-spring. and now we got confirmed SO4 on ion chromatography. however, unfortunately, my major is not chemistry, and then i have no idea what the equation is. Please...
- Thu Dec 06, 2007 11:46 pm
- Forum: Chemistry forum
- Topic: PLease assist with tricky balancing...
- Replies: 3
- Views: 5679
Re: Uh...
No, she specifically told us that it is not H2O .... It's confusing... I'm gonna die :lol: I'll insist that it must be H2O, there is absolutely no way H2 could be produced in such a reaction (due to the fact that Cl2 is a strong oxidizing agent). Tell your teacher about this thread(forum) - I am re...
- Thu Dec 06, 2007 10:38 pm
- Forum: Chemistry forum
- Topic: HELP!!
- Replies: 1
- Views: 6747
Re: HELP!!
Please help!! I need to balance this chemical equation and I don't have a clue. Could someone balance this and explain it to me? The equation is H2SO4+B(OH)3+B2(SO4)3+H2O Lisa You must have an equality sign in your equation. Here it is balanced: 3 H2SO4 + 2 B(OH)3 = B2(SO4&a...
- Thu Dec 06, 2007 10:36 pm
- Forum: Chemistry forum
- Topic: Balance this redox...Help
- Replies: 1
- Views: 4003
Re: Balance this redox...Help
KMnO4 + SO2 + H2(SO)4 = Mn(SO)4 + K2(SO)4 + H2(SO)4 First of all do not put parenthesis everywhere. H2(SO)4 is the same as H2S4O4 which is a mistake! It must be H2SO4. Also you should have water on the left: KMnO4 + SO2 + H2O = MnSO4 + K2SO4 + H2SO4 That is balanced without any problem by chemical ...
- Thu Dec 06, 2007 10:31 pm
- Forum: Chemistry forum
- Topic: PLease assist with tricky balancing...
- Replies: 3
- Views: 5679
Re: PLease assist with tricky balancing...
I'm having some real trouble with a tricky problem on a worksheet we got in my high school Chem class, if anyone could shine some light on my problem, I would be really interested to know how to solve this. :?: The Balancing Calculator on this same site says that some of the chemicals have coeffici...
- Wed Nov 14, 2007 10:28 am
- Forum: Chemistry forum
- Topic: chem
- Replies: 1
- Views: 3472
Re: chem
There are two elements which fits the answer!JamiePena wrote:write a chemical symbol and english name of an element in period 3 which is a gas at room temperature.
Chlorine Cl http://www.webqc.org/periodictable-Chlorine-Cl.html
and
Argon Ar http://www.webqc.org/periodictable-Argon-Ar.html
- Wed Nov 14, 2007 10:25 am
- Forum: Chemistry forum
- Topic: Iodiometric Analysis of Sodium Peroxoborate
- Replies: 1
- Views: 14220
Re: Iodiometric Analysis of Sodium Peroxoborate
Please help!! Iodometric Analysis of Sodium Peroxoborate - can't find the equations anywhere!! (1) Sodium Peroxoborate + Potassium Iodide + Sulphuric Acid = ?????? (2) Product from equation 1 + Sodium Thiosulfaye = ?????? HELLLLLP!! (Due tomorrow afternoon!) (1) Na2[B2(OH)4&...
- Wed Nov 14, 2007 10:16 am
- Forum: Chemistry forum
- Topic: pH
- Replies: 1
- Views: 3508
Re: pH
Because most foods contain organic acids which has pH lower than 7.gwda wrote:Why are there so few foods with a pH greater then 7?
Thanks.
- Wed Nov 14, 2007 10:15 am
- Forum: Chemistry forum
- Topic: excited electrons
- Replies: 1
- Views: 12985
Re: excited electrons
In ground state sulfur has:tropicalwaters wrote:what is the excited electron configuration of a sulfur atom? and how would the orbital diagram look like?
1s2 2s2 2p6 3s2 3p4
If you promote an electron to a higher orbital it will give you an excited state, for example:
1s2 2s2 2p6 3s2 3p3 3d1
- Wed Nov 14, 2007 10:12 am
- Forum: Chemistry forum
- Topic: [Help req.] Balancing redox reaction equations
- Replies: 4
- Views: 5297
Yes, that is absolutely impossible.Noff wrote:Is there no way to balance the original equations without the additions?
Thanks by the way.
A simple poof is to look at charges: they have different sign on both sides in original equations. Therefore whatever coefficients you choose charge will not be balanced!
- Wed Nov 14, 2007 10:09 am
- Forum: Chemistry forum
- Topic: What makes NaNO2 a strong electron acceptor?
- Replies: 1
- Views: 3535
Re: What makes NaNO2 a strong electron acceptor?
Just wondering why sodium nitrite is a stronger electron acceptor than sodium nitrate? When metronidazole is given to treat bacterial infections, it accepts electrons from them and in exchange gives them an oxygen. When you add in sodium nitrite it inhibits the function of metronidazole accepts an ...
- Mon Oct 29, 2007 12:11 am
- Forum: Chemistry forum
- Topic: impossible equations?
- Replies: 1
- Views: 6485