Chemistry - November 2006

2006-11-30 00:59:12 · 2 answers · asked by Anonymous

i.e under which conditions.

2006-11-30 00:51:01 · 9 answers · asked by umang 1

2006-11-30 00:42:45 · 6 answers · asked by lahingesudraz 1

2006-11-30 00:40:09 · 5 answers · asked by Anonymous

2 drops of AgNO3 were added to 4 drops of NaCl,white ppt formed,then 4 drops of KI were added to the above mixture,ppt changed to pae yellow,,why was therea colour change?????how does the colour change explain ksp values for AgCl and AgI ?
why is it when ionic product of a dissociating compound greater than the ksp value,,ppt forms or why when less than the ksp value ppt dissolves?????????

2006-11-30 00:35:06 · 2 answers · asked by mmmmmmmmm 1

2006-11-30 00:04:21 · 2 answers · asked by Anonymous

the chemical equtaion for burning of fuels suggests that water and carbon dioxide are the only product. Now please answer my question with this details

2006-11-29 23:56:48 · 2 answers · asked by tasha b 1

2006-11-29 23:51:55 · 2 answers · asked by Anonymous

2006-11-29 23:48:53 · 4 answers · asked by Anonymous

A: It will be equal to the ionization energy of Li.

B: It will be equal to and opposite in sign to the electron affinity of Mg.

C: It will be equal to and opposite in sign to the electron affinity of Mg+.

D: It will be equal to an opposite in sign to the electron affinity of Mg+2.

2006-11-29 23:46:54 · 2 answers · asked by Failure 2

true or false

2006-11-29 23:44:57 · 12 answers · asked by Morfydd E 1

please with a little explanation on how to obtain it

2006-11-29 23:41:05 · 6 answers · asked by Betenix 2

2006-11-29 23:35:34 · 1 answers · asked by Betenix 2

Light can have a wavelength of 5.95e2nM. the energy of a photon of light is?

I think it is 5.95e-7 J , can someone help me?

2006-11-29 23:33:31 · 2 answers · asked by steven11111958 1

2006-11-29 23:06:12 · 7 answers · asked by sri r 1

Guys can you give me some ideas oubout this matter. I need an IMPROVISED APPARATUS USED IN NUCLEAR CHEMISTRY. All I need is the procedures and some details about the project just like some simple activity in Science. Its our requirement in AR Chemistry. Thanks...

2006-11-29 23:01:13 · 1 answers · asked by prinztongurl181 1

2006-11-29 22:20:57 · 1 answers · asked by *yawn* 2

2006-11-29 22:07:54 · 2 answers · asked by Anonymous

2006-11-29 21:52:57 · 1 answers · asked by bets 1

2006-11-29 21:18:24 · 6 answers · asked by Anonymous

2006-11-29 20:46:28 · 1 answers · asked by Anonymous

grey, or white, or black smoke comes like a cloud when fire is extinguished

2006-11-29 20:24:49 · 11 answers · asked by gladroy 1

2006-11-29 19:58:08 · 2 answers · asked by vetri 1

I understand that the 2 represents the amount of valence in the formula. But what does the 3 represent?

Sorry the 3 is meant to be small but there are not subscripts in here.
Thanks in advance.

2006-11-29 19:45:35 · 3 answers · asked by Anonymous

Hydrazine hydrate(50% as N2H4 solution) chloride less than 0.1% as Nacl,
Whether the offer CL- 8.5 mg/kg is fulfilling the specs mentioned above??
what is realtion between CL- 8.5 mg/kg and chloride less than 0.1% as Nacl,
Please expalin...
Many thanks in advance!!!

2006-11-29 19:28:52 · 1 answers · asked by samuel_sonu 1

An electrochemical cell is set up where the overall reaction is : Pb2+ + Sn → Pb + Sn.
Calculate the cell potential Ecell,for this process under the following conditions:
a.Standard conditions at both electrodes
b.[Sn2+ ]=0.01 M; [Pb2+]=0.2 M
c.[Sn2+ ]=0.40 M; [Pb2+]=0.005 M
In each case decide the direction in which the reaction will spontaneously speed.

2006-11-29 19:14:35 · 2 answers · asked by confused 1

Has anynone have experience using pheromones? and do they really work?

2006-11-29 19:03:33 · 3 answers · asked by navair006us 2

a) AgBr
b) Ca3(PO4)2
c) LiH
d) RaCl2

2006-11-29 18:48:57 · 5 answers · asked by Anonymous

Using the Nernst equation calculate the cell voltage for

Fe(s) + Cd2+(aq) ---> Fe2+(aq) + Cd(s)

when the [Fe2+] = 0.16 M and [Cd2+] = 1.6 M.

thanks

2006-11-29 18:48:02 · 2 answers · asked by dy221 2

Cations are attracted to ________ in an elctrochemical cell.

a. the anode
b. the electrode
c. the cathode
d. the electrolyte

2006-11-29 18:46:04 · 3 answers · asked by mgskills 1