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Chemistry - July 2006

[Selected]: All categories Science & Mathematics Chemistry

I know elements are part of chemistry, but what is is?

2006-07-20 02:37:36 · 4 answers · asked by Anonymous

2006-07-20 01:24:05 · 7 answers · asked by maya 1

give me atlest 5 topics for it as i ask u as soon as possibal lettratur atlest 30 pages req

2006-07-20 00:33:46 · 1 answers · asked by dhr_desai 1

2006-07-19 23:45:07 · 3 answers · asked by Anonymous

some students obatain a solid as a result of an experiment. they find that the solid has a fixed melting point and boiling point and that it has a uniform density. they conclude that they have discovered a new substance. is the conclusion justified? defend yourself..

2006-07-19 23:26:30 · 12 answers · asked by Anonymous

Riddle

2006-07-19 22:37:43 · 3 answers · asked by kelsarhu 1

question is from inorganic chemistry

2006-07-19 21:42:32 · 1 answers · asked by Anonymous

2006-07-19 21:39:44 · 16 answers · asked by beibi anghell 1

2006-07-19 21:27:42 · 9 answers · asked by beibi anghell 1

assay: 35%
Mw: 36.5
density: 1.163


plz help now

2006-07-19 20:29:58 · 1 answers · asked by Heba 1

2006-07-19 18:47:47 · 5 answers · asked by Anonymous

2006-07-19 18:46:32 · 2 answers · asked by khadija h 1

the awnser i have but how to work it is the problem
i know that i would need more 2% then 10% solution.

it deals with ( ml ) and its used in the pharmacy test

2006-07-19 18:45:39 · 5 answers · asked by Anonymous

2006-07-19 18:44:02 · 5 answers · asked by petermas4 1

2006-07-19 18:28:08 · 3 answers · asked by Anonymous

The carbon dioxide took 1.25 times as long to escape as the unknown gas. Which one could be the unknown gas?
A) Cl2 =71.0 g/mol
B) CO = 28.01 g/mol
C) HCl = 36.46 g/mol
D) H2
E) SO2 = 64.06 g/mol

Can someone explain how to figure this equation. I found all the g/mol except for H2. I do not understand how to figure this equation.

2006-07-19 17:48:44 · 7 answers · asked by Anonymous

a) decrease in energy due to decrease in repulsive forces between gas molecules

b) decrease in energy due the cooling effect

c) attraction for the container walls

d)decrease in order

Which one sounds like the better answer.

Also what is the absolute entropy is it the ΔS°?

2006-07-19 16:41:06 · 2 answers · asked by thekorean2000 4

2006-07-19 14:42:29 · 14 answers · asked by Anonymous

I figure there has to be some sort of program out there where you can just draw the chemical you'd like to synthesize and it will give you theoretical steps on how to produce it based on known reactions. Does anyone know of such a program?

I will award the points right away.

2006-07-19 13:27:04 · 3 answers · asked by Anonymous

The monster I mean here is a real monster. Well tell me your wacky ideas and imagination ? Pls use food stuff only.

Share your opinion.

2006-07-19 12:07:42 · 21 answers · asked by koko 3

i was raped back in april 2005 and now this man is going around town telling people im on meth. and my atty. called me today requesting a hair follicle test so we can present it to the court during civil trial i dont have anything to hide but was wondering about this test i have had 3 bouts with cancer and im tiny and im 41 so thats why this "man" thinks he can say this stuff please help i want to know all i need to before i agree to this test he was wrong and i still have to prove myself. not fair in ok.

2006-07-19 11:59:20 · 3 answers · asked by aunt bb 1

This is the information that I have if anyone needs it:
2NO(g) + O2(g) ----> 2NO2(g)

NO(g) ΔG°f=86.7 (kJ/mol) ΔS°=211 (J/mol)
NO2(g) ΔG°f=51.8 (kJ/mol) ΔS°=240 (J/mol)
NOCl(g) ΔG°f=66.3 (kJ/mol) ΔS°=264 (J/mol)
N2O(g) ΔG°f=103.6 (kJ/mol) ΔS°=220 (J/mol)

All taking place at 25°C

2006-07-19 10:53:48 · 2 answers · asked by thekorean2000 4

2006-07-19 10:31:17 · 4 answers · asked by joeduncuff 1

2006-07-19 09:47:56 · 12 answers · asked by ? 6

2006-07-19 09:39:14 · 3 answers · asked by Anonymous

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