Chemistry - August 2006

2006-08-07 22:19:16 · 29 answers · asked by Anonymous

Can someone plsea explain enthorpy to me?

2006-08-07 22:16:28 · 7 answers · asked by de5tiny06 2

I used general purpose cleaning alcohol on the clear plastic door of a phone and it turned foggy with white residue. Please tell me what has happened and is there any way I can fix it and remove the white foggy residue from the clear plastic parts.

2006-08-07 21:52:02 · 8 answers · asked by aranate 1

i need to prepare in my lab 50mM triethanolamine buffer, if any body knows plz let me know

2006-08-07 21:46:55 · 4 answers · asked by Anonymous

2006-08-07 19:39:50 · 4 answers · asked by ivblackward 5

i have a ceminar on that..
so in introduction i have to describe that..
pls tell me if u know?

2006-08-07 18:37:55 · 9 answers · asked by Raju.K.M 5

2006-08-07 18:27:07 · 7 answers · asked by Raju.K.M 5

I have been told that there is one that has been just discovered and that rothman tech had it!
but they were being sued
now they have disappeared ....
where and what is what I am looking for

2006-08-07 18:04:53 · 5 answers · asked by misscherylamy31 1

(This I have no idea about b/c we didnt talk about reactions we only talked about ionic and covalent bonding)
Someone please help answer this question??

2006-08-07 16:32:16 · 7 answers · asked by sobe50418 1

2006-08-07 14:24:18 · 11 answers · asked by Anonymous

I understand there is a faction of the population who feel global warming is not a result of increased greenhouse gas emissions. If you are a part of this faction please refrain from answering my question.

The number of Greenhouse Gasses has skyrocketed in the troposphere, carbon for one, ozone is another, and this over abundance of GG has been labeled the cause of the increase in earths surface temperature from just 13.5 Celsius rise over 150K years to a .6 Celsius rise in just the last 100 years.

We have a depletion of ozone in the stratosphere as a result of CFC’s; this is the cause of Ozone depletion.

Can someone explain to me how we can have this overabundance of Ozone in the troposphere and a shortage of Ozone in the stratosphere, both causing damage to Earth?

2006-08-07 13:59:21 · 3 answers · asked by ? 3

It was with flaming proxide and I don't think that he cared? and it was only like a foot long maybe. I really didn't mean to.

2006-08-07 12:35:59 · 20 answers · asked by Bizzy 1

Is it in your water supply? Have you suffered any bad reactions to it?

2006-08-07 11:40:05 · 5 answers · asked by Signilda 7

The intention is to obtain white sugar out of black sugar

2006-08-07 11:01:58 · 4 answers · asked by pelucho 1

I know it's that stuff at the dentist they used for filling....... but like what's it called?

2006-08-07 09:59:06 · 6 answers · asked by Bizzy 1

2006-08-07 09:08:16 · 2 answers · asked by Utopia 4

(a)NaC2H3O2(aq) + HCl(aq) ->
(b)ZnS(s0 + HBr(aq) ->
(c)KCl(aq) + Hg2(NO3)2(aq) ->
(d)Ni(NO3)2(aq) + CuSO4(aq) ->
(e)Li(s) + H2O(l) ->
(f)H2SO4(aq) + KOH(aq) ->
(g)HC2H3O2(aq) + NaOH(aq) ->

if someone could please help me with any of these, i would greatly appreciate it! i don't understand them at all.

2006-08-07 08:57:41 · 2 answers · asked by asperity 2

im taking chemistry 102L this fall (introductory chemistry lab) and I need a lab notebook, obviously. I was wondering if a lab notebook can just be a composition notebook that is quad ruled (meaning, a notebook with graph paper inside) that i can purchase from any school supply store i.e. Office Depot or Staples. The reason why i ask this is because i took a college lab when i finished the 10th grade (through a special program) and i was told that i could just get that type of notebook and didnt have to get those fancy ones that the university book store sold with an extreme price....so were they just being nice or do people really just use that type of notebook?

2006-08-07 08:34:02 · 5 answers · asked by ? 4

Along with that, what is a secondary and tertiary haloalkane?

Is this the same as primary, secondary, tertiary Carbon? If not, what is a primary, secondary, tertiary Carbon?

2006-08-07 08:18:15 · 5 answers · asked by warguy2000 2

2006-08-07 08:07:39 · 5 answers · asked by Mango 1

2006-08-07 08:06:17 · 21 answers · asked by Andy Love 1

can sombody tell me the theory of quantum mechanics>

2006-08-07 07:51:00 · 8 answers · asked by The REBELution! 3

2006-08-07 07:47:52 · 14 answers · asked by Samvit 1

we found this silver bar in our attic and want to know more about it: small bar, 2"by1", 1/4" in thickness. .999 troy ounce, stamped EPM

2006-08-07 06:29:45 · 2 answers · asked by colleentuisl 1

This is just an idea that I had that probably has many scientific flaws in it, but just thought if there were any chemistry majors out there, they could help me to answer this question. Liquid oxygen is extremely cold. I had an idea about using it to cool off large areas of ocean that a hurricane would immediately pass through, and as the oxygen dissipated, it could possibly help somewhat with the depletion of the ozone layer by adding oxygen to the atmosphere. I know this sounds like a simplified idea, and it is. Understand that I am an extreme novice with an idea.

Here are some of my concerns:

Would liquid oxygen dissipate too quickly to cool off large areas of water? Would the churning of the ocean just bring warm waters quickly to the surface and negate the liquid oxygen? How much liquid oxygen would it take? Is it possible to make this much? How could it be delivered to an area in mass quantities?

Just an idea. Wanted to see if this has any merit whatsoever.

2006-08-07 05:22:15 · 6 answers · asked by Peace69 2

what is the decomposition temperature of pure methanol, ethanol, propanol and butanol

2006-08-07 04:55:24 · 2 answers · asked by curious 1

I need your help, please.
Thanks. ^^

2006-08-07 04:20:22 · 46 answers · asked by shelling 2

I remember from my youth a big "have to conserve water" campaign (during the Acid Rain scare) but I always wondered because don't we drink water and then either urinate or sweat it out and then it evaporates and then become clouds which rain and then we drink it again.
Doesn't the amount of water (overall in all forms) stay pretty much the same?

2006-08-07 03:18:40 · 16 answers · asked by thebuffettour 2

2006-08-07 02:23:58 · 12 answers · asked by Anonymous

2006-08-07 02:13:21 · 14 answers · asked by vignesh_sabhahit 1