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Chemistry - November 2006

[Selected]: All categories Science & Mathematics Chemistry

2006-11-09 13:09:09 · 1 answers · asked by Anonymous

If acidity is a function of the concentration of H+ then how does CO2 affect this?

2006-11-09 13:03:12 · 2 answers · asked by presidentrichardnixon 3

2006-11-09 12:56:27 · 2 answers · asked by princess 1

liquid water + solid potassium ---> ?????

aqueous sulfuric acid + aqueous potassium hydroxide ---> ?????

aqueous calcium hydroxide + aqueous hydrochloric acid ---> ????

ANY help would be greatly appreciated...thanks!

2006-11-09 12:53:45 · 4 answers · asked by chrisjptine 1

0

Can anyone help me, ive been asked these questions and im not to sure.Answers appreciated!!

Suggest an inictor for the following reactions:

1) Silver NItrate + NaCl -----> AgCl + NaNO2

2) Ca2+ + Y4- --------> CaY2- (where Y4- = EDTA anion)

Thanks!

2006-11-09 12:46:07 · 2 answers · asked by Stevie B 2

Organelles that package cellular substances for export are_______?
a. Gogi bodies
b. ribosomes
c. lysosomes
d. chloroplasts

8 minutes ago - 7 days left to answer

2006-11-09 12:29:00 · 6 answers · asked by help me with my science 1

If you had to put the elements lead, platiunum and sodium in order based upon activity levels, what order would they be in and why?

2006-11-09 11:46:53 · 5 answers · asked by A.llure M 1

2006-11-09 11:45:02 · 1 answers · asked by bestsangaalive 1

i don't understand oxidation numbers writing formulas polyatomic ions or chemical formulas. Can any one please help me!!!

2006-11-09 11:41:40 · 3 answers · asked by angel_luvs_ja 1

Here is this chemical formula (it also has to be balanced) I have for homework, plzzzz solve it or help me!

it is: (the numbers are subscripts.)

Na2CO3 + AgNO3 =

ps. this is a "double displacment formula"

2006-11-09 11:18:22 · 9 answers · asked by Focusin 2

0

A gas has density of 36056 g/L at STP. What is its density at 647 torr and 72 degrees C? (answer in units of g/L).
i dont know how to approach this...! :(

2006-11-09 11:17:14 · 3 answers · asked by Anonymous

You know like the periodical table of eliments

2006-11-09 11:13:26 · 8 answers · asked by Alexis R 1

2006-11-09 11:08:43 · 2 answers · asked by sofia m 1

2006-11-09 11:02:44 · 6 answers · asked by sylviacutie06 1

An apparatus consists of a 4L flask containing Nitrogen gas at 19degrees C and 780 kPa, joined by a valve to a 7 L flask containing argon gas at 19degrees C and 40.8 kPa. the valve is opened and the gases mix. What is the partial pressure of the nitrogen after mixing? Use units of kPa.

i found the moles of each gas, and used the proportion moles of gas over total moles, multiplied by total pressure.
im thinking this is wrong.
how do i do this?

2006-11-09 11:01:56 · 1 answers · asked by Anonymous

2006-11-09 10:56:50 · 2 answers · asked by baby_tiffy 2

a. How many liters of ammonia at STP are formed when 25 L of N2 at STP react with H2.


b. How many liters of H2 AT 25 Centigrade and 1 atm are needed to react with 398L of N(2) Centigrade and 1 atm.


c.How many liters of NH3 at STP are formed when 9.56L of N2 at STP reacts with 27.1 L of H2 AT stp (This is a limiting reactant problem)



This problem gave me the fluxxxx. I worked it through though...Let's see if you can.

2006-11-09 10:50:44 · 2 answers · asked by nst 1

I thought that molecular weight applies to compounds of any type? Also what is the difference between molecular weight and formula weight? Any help is much appreciated.

2006-11-09 10:49:56 · 3 answers · asked by Gideon 1

1. KCl solution and a AgNO(3) solution.


2. Na(2)SO(4) solution and a Ba(NO3) (2) solution.

2006-11-09 10:41:30 · 3 answers · asked by nst 1

i got this question from my chemistry teacher and i'm not getting answers for this question can anyone help me.

2006-11-09 10:35:49 · 2 answers · asked by Anonymous

i am confused why pcl5 exists and ncl5 doesn't?

2006-11-09 10:35:24 · 2 answers · asked by Anonymous

the atomic number is 92. boomer sooner will u be the first, im going to give you best answer for all of the ones you do answer.

THANKS

2006-11-09 10:33:09 · 3 answers · asked by Anonymous

I know that when a base and an acid react, one of the products it forms is salt. When ammonium hydroxide and acetic acid are mixed what is the salt they form?
Please explain.

2006-11-09 10:29:43 · 4 answers · asked by Anonymous

... &♥;

2006-11-09 10:29:40 · 4 answers · asked by Sarah w 1

I need to know a name of one.

2006-11-09 10:27:32 · 2 answers · asked by Anonymous

I am guess that it forms a covelent bond with the Hydrogen atoms but I'm not quite sure. If you do andswer and you please explain why?

2006-11-09 10:15:52 · 3 answers · asked by Anonymous

I'm reading about this Ordeal by drinking Sulfur that certain people were put through to prove their innocence. I'm just curious what sulfur would do to someone. Would it kill them? Would it just make them really sick?

2006-11-09 10:15:41 · 4 answers · asked by Heron By The Sea 7

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