Chemistry - November 2006

2006-11-05 02:33:42 · 3 answers · asked by kennethblatchford 1

2006-11-05 02:16:05 · 3 answers · asked by Anonymous

Choose which substance might be used in a fire-retarding agent for combating each of the following fires

Choose From The Following 4 To Estinguish The Flame

1.Water
2. Carbon Dioxide
3. Silicon Dioxide
4. Carbon Tetrachloride

1.When Lithium Burns In Air?
2. When Potassium Burns In Air?
3. When Sodium Burns In Air?

Heats Of Formation For Help..
Li2O(s) -597.9 Li+(aq) -278.5
Na2O(s) -416 Na+(aq) -240
K2O(s) -361 K+(aq) -251
CO(g) -110.5 CO2(g) -393.5
H2O(l) -286 OH-(aq) -230
CCl4(l) -135 SiO2(s) -911
LiCl(s) -409 NaCl(s) -411
KCl(s) -436 Cl-(aq) -167

2006-11-05 02:13:27 · 1 answers · asked by Magnitudex 2

It is for a science project.................THANKS! FIRST PERSON TO POST WILL GET 5 STAR BEST ANSWER.........IF IT IS GOOD AND NOT A BUNCH OF BULL S***.

2006-11-05 02:10:12 · 2 answers · asked by Anonymous

which of the following transitions will give the highest energy emission line for atomic hydrogen
A. n=4-->n=2
B. n=7-->n=2
C. n=4-->n=2
D. n=6-->n=2

I think the answer is A, but, not too sure about it, any explanations would be helpful

Cheers

2006-11-05 02:00:39 · 1 answers · asked by obiora c 2

where do hydrocrabons and nitrogen oxides come from - ex. like a factory or something

2006-11-05 01:32:28 · 8 answers · asked by JAAL 2

ok, here it is, how much math and equations are there in this subject at degree level? and is it imperative that you need a solid foundation in math and science before attempting the open university degree course above? i fancy this course but it was a couple of decades ago since i studied GCE or O level maths and science!

2006-11-05 01:14:57 · 6 answers · asked by paul m 1

I want to know the solubility of egg albumin.
I did some experiments with water,alcohol,sodiumhydroxide..
but it is only partially soluble..
I want to know the real solvent in which egg albumin is compleatly soluble ..

2006-11-05 00:56:01 · 4 answers · asked by aloo 2 1

2006-11-05 00:49:12 · 2 answers · asked by Katie 1

2006-11-05 00:48:38 · 3 answers · asked by ekirisciler 1

should I use filtration and crystallization, or distillation???

2006-11-04 23:03:33 · 9 answers · asked by kinachi 1

2006-11-04 21:47:16 · 2 answers · asked by izzy 1

2006-11-04 21:34:02 · 6 answers · asked by Vetisha C 1

i have searched on some sites regarding those subjects but i have seen some that is too complicated that i can not explain it with my classmates. Please help me. We needed it by tomorrow.Thanks, immediate reply may do. Please give me some links that may help regarding this matter.

2006-11-04 21:25:05 · 1 answers · asked by gjvallangca 1

2006-11-04 20:20:57 · 4 answers · asked by Kera 1

2006-11-04 20:17:08 · 2 answers · asked by John X 1

15.3 moles Au->grams Au

2006-11-04 18:46:48 · 2 answers · asked by jere 1

I don't want to know the atomic mass of gold. I want to know, if in life in general, is gold considered heavy?

2006-11-04 18:36:54 · 9 answers · asked by katiebabz 1

2006-11-04 18:23:24 · 3 answers · asked by ahmad g 1

how many atoms of eache of the following elemnts would be present in samples having the following mass?

1)14.01g of nitrogen atoms
2)40.08g of calcium atoms


why??

2006-11-04 18:11:03 · 4 answers · asked by Anonymous

2006-11-04 17:08:10 · 5 answers · asked by Amit Mangal 1

2006-11-04 17:06:02 · 2 answers · asked by vikaskanojiya83 1

ci

2006-11-04 16:59:10 · 7 answers · asked by lalaine s 1

2006-11-04 16:55:41 · 11 answers · asked by sunny 1

2006-11-04 16:37:56 · 5 answers · asked by jyoti b 1

2006-11-04 16:28:47 · 15 answers · asked by ramila p 3

2006-11-04 16:18:39 · 12 answers · asked by ramila p 3

anyone tell me how many liters in a barrell there are

2006-11-04 15:59:58 · 2 answers · asked by rakesh b 2

I know that when burning organic materials fire can only be red, orange, or yellow, but are blue fires always gas fires? If it isn't a gas fire can you put out a blue fire with a lot of water?

2006-11-04 15:23:00 · 5 answers · asked by MagnificentOne 2

2006-11-04 15:02:46 · 3 answers · asked by okiron 1