Chemistry - November 2006

2006-11-22 05:38:45 · 2 answers · asked by paul g 1

It is said to be related to chemistry as a subject.

2006-11-22 05:28:19 · 6 answers · asked by Sedi I 1

At 17 Degrees Celsius, a sample of fluorine gas (F2) occupies a volume of 1400 mL. If the temperature changes from 17 Degrees Celsius to 20 Degrees Celsius what volume will the gas now occupy?

2006-11-22 05:14:39 · 1 answers · asked by cetinnovations 1

please help, I tried doing this problem and I am not sure how it is supposed to be set up. Thanks

2006-11-22 05:06:34 · 3 answers · asked by Sam 3

this is the equation 2NO(g) + O2(g)------------>2NO2(g)
the heat enthalpy is -114.6kJ/mol

2006-11-22 04:44:35 · 1 answers · asked by kevin5782 2

The active ingredient in many laundry bleaches is

When hydrogen burns in chlorine, the product is

Hydrogen chloride is made in the laboratory by the action of sodium chloride on

Chlorine may be obtained from hydrochloric acid by

mind you all you mean posters that like to tell ppl to do there own homework there where 100 questions on this thing and these are the only ones i dont know

2006-11-22 04:43:24 · 3 answers · asked by alex h 3

2006-11-22 04:42:08 · 1 answers · asked by Anonymous

OXIDATION NUMBER

2006-11-22 04:37:44 · 7 answers · asked by galwithwings2346 1

2006-11-22 04:33:57 · 5 answers · asked by Hazel 1

2006-11-22 04:29:44 · 6 answers · asked by Hazel 1

I'm not sure how to do this. Been trying for hours. Any help would be great. If you can explain how you did it, thats would be really helpful.

2006-11-22 03:58:29 · 5 answers · asked by countrygurl587 3

Now, I completely know that nothing about ice and snow makes it flammable, this question is purely hypothetical. Me and some of my friends were debating this and I would like to see what some other people's opinions were, thanks.

2006-11-22 03:34:06 · 4 answers · asked by gocubs_88 2

Urgent! 5 minutes!

2006-11-22 03:12:21 · 3 answers · asked by answers4evry1 2

2006-11-22 02:42:25 · 5 answers · asked by Anonymous

I need to know the molar mass, moles of each element, and atoms of each element. The element is Gold(Au). How do I find out this information? I already know the mass is 51.0617 grams.

2006-11-22 02:40:20 · 6 answers · asked by Anonymous

just a thought

2006-11-22 02:31:11 · 7 answers · asked by simon b 1

2006-11-22 02:23:22 · 10 answers · asked by LaTisha N 1

2006-11-22 02:15:23 · 5 answers · asked by nikky 1

2006-11-22 02:08:11 · 3 answers · asked by urlast2003 1

form how long a current of for how long a current of 10A be passed through fused PbBr2 so as to obtain 10.35g

2006-11-22 01:56:53 · 1 answers · asked by mathiphy 2

2006-11-22 01:52:16 · 7 answers · asked by pearl3201 1

2006-11-22 01:10:43 · 3 answers · asked by aly 1

i mean like 18k is decoded with 750, what are the rest?

2006-11-22 00:55:35 · 2 answers · asked by ronkeslim 3

can you explian how to do it?


Question 1:
What is the percent of oxygen in Ca3(PO4)2?

Question 2:
What is the percent of sulfur in ammonium sulfate?

Question 3:
What is the percentage of iron in ferric sulfate?

2006-11-22 00:31:02 · 2 answers · asked by Anonymous

I have this assignment where they ask me what is this Isotope, what do humans use it for, a how does it work
Carbon, isotope 14

2006-11-22 00:15:24 · 4 answers · asked by Jandro 1

I did some hard reasearch but I coudlt find out anything about the following questions

I answered for the question (WHAT IS OXYGEN USED FOR?)

and answered

Oxygen is a very common yet vital element and used in many things. First, it is an element used to make water which is needed for life, H2O. Secondly, it is the gas which we breathe in for respiration.

And I cant answer the question
-WHY THE GAS HAVE THESE USES?

And the Last question I need help on is
-HOW THE GAS COULD BE OBTAINED?
-

2006-11-21 23:57:13 · 2 answers · asked by knd1994 2

2006-11-21 23:56:11 · 4 answers · asked by potpot n 1

I am doing A-level Salters Chemistry and i am looking for a free past exam paper for the unit 2849: Chemistry of materials, so i can practice the questions for the upcoming exams in January 2007. Please I need ur help.

2006-11-21 23:25:11 · 5 answers · asked by imz11 2

2006-11-21 21:23:54 · 3 answers · asked by mostwantedkaycee 1

2006-11-21 20:34:37 · 5 answers · asked by kaye s 2