Chemistry - August 2006

2006-08-29 01:38:14 · 5 answers · asked by eirini k 1

2006-08-29 01:25:08 · 6 answers · asked by zo shirazi 1

in saline water there are h+ ions.

2006-08-29 01:17:14 · 7 answers · asked by RAHUL 1

2006-08-29 00:47:48 · 6 answers · asked by zo shirazi 1

Use Gas Laws to explain the ff.: Boyle's Law:

A. An inflated balloon, when released, propels it self across the room like a rocket.

B. Liquid drawn up through the straw when suck on it

C.How does the heimlick Maneuver removes food caught in the windpipe?

2006-08-29 00:03:43 · 3 answers · asked by smart_cutie012 1

2006-08-29 00:02:12 · 23 answers · asked by shaif_vhora 1

What are same effects, when the air is 100% oxygen?

Why do spray cans labels warn us against disposing empty cans into incenerators?

why are scuba divers advised not to stay down long and not to ascend rapidly?

Fans are often used to cool us off when weather is hot and humid. Why does this same temperature of air has cooling effects?

2006-08-28 23:53:04 · 3 answers · asked by smart_cutie012 1

tell in specific term

2006-08-28 23:24:12 · 3 answers · asked by Anonymous

1 How to make liquid water with high polymerization to water with low polymerization?
2 How to determine polymerization degree of water in liquid?

2006-08-28 22:30:04 · 1 answers · asked by shenmengc 1

A gas occupying a volume of of 725mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?

2006-08-28 22:20:50 · 8 answers · asked by Lorenz 2

This word is used by communists in discussions

2006-08-28 21:41:08 · 2 answers · asked by patrickrobin55 1

please help me

2006-08-28 20:33:14 · 3 answers · asked by kat 2

Hg is an element with a very unusual property compared to its neighbours on the periodic Table. The easy bit would be to tell what that is

But the challenge: What is the three other elements which shares that property.

Regulars may know the answer, but they should know the drill. Fastest finger first, and detailed answers are the nice ones (oh, and none of this cut & Paste off Wikipedia cheating, thats Laziness, not scientific).

I ussually provide a morning wake up chance as a break for the thinkers from the mundane questions, however this unfortunately will be the last question on the morning brain workout. More details of why can be found here:-
http://uk.geocities.com/gleech401/quizend.html

2006-08-28 19:49:13 · 4 answers · asked by Anonymous

when we are use the I.R Spectroscopy

2006-08-28 19:34:58 · 7 answers · asked by rambabu d 1

I keep seeing articles saying we have to go to renewable energy sourses and soon. What options do we have. Hydro power is being used and has nearly reachedits limit. Wind power so far has not proven it's worth. It takes a huge number of wind turbines to even begin to make a dent in consumption of fossil fuels. The same with solar power. It would take a vast amount of solar cell panels just to power one factory. Bio fuels such as Bio diesel and alcohal use up a vast amount of crop land that will soon be needed to feed the growing population. Hydrogen has potential but so far it takes more energy to produce it than the energy it provides. Fusion nucular may be the best answer in the long run if it ever becomes possible to build fusion reactors that donot take outside energy to run them. Fision reactors create a vast amount of dangerous wste that will last far too long. Any one know of any alternative that can bee viable?

2006-08-28 18:53:58 · 11 answers · asked by Anonymous

No plans of making military tanks though. Just asking.

2006-08-28 16:29:44 · 11 answers · asked by Danny La Cuesta 1

2006-08-28 15:51:04 · 4 answers · asked by Anonymous

I want 3 acids and 3 bases... What acids and bases might I have around my house?

2006-08-28 15:37:53 · 10 answers · asked by RED MIST! 5

now i m really stuck.. help please...

2006-08-28 15:31:30 · 3 answers · asked by hiya 1

2006-08-28 14:58:41 · 8 answers · asked by james w 3

if yes give datail, and why the are been analys

2006-08-28 14:45:16 · 6 answers · asked by iyke 1

2006-08-28 14:41:37 · 2 answers · asked by iyke 1

i need to know the mechanism for the sorenson method of amino acid synthesis. please help me find a link, or if you know a textbook that explains it

.. and if posible, a mech for the malonic ester amino acid synthesis

2006-08-28 14:32:12 · 3 answers · asked by Anonymous

In which state of matter do the following exist at r oom temperatire and atmospheric pressure?

diamond oxygen cooking oil mercury clay or neon

2006-08-28 13:30:39 · 4 answers · asked by AP 1

What is the concentration of OH- in a 2.0 M solution of the weak base CH3NH2

CH3NH2 + H2O <-> CH3NH3 + OH-

With Kb = 4.27 x 10^-4

2006-08-28 13:16:45 · 6 answers · asked by RED MIST! 5

2006-08-28 13:00:47 · 12 answers · asked by trinimixer2004 1

Is it possible for two components of a dye mixture to have the same Rf values for a given solvent system but have different colors?

I need to know this for a lab question, but I'm not entirely sure what it is asking or how to answer it. I know what Rf value is, but not what the question means. The lab used markers and dyes, if that helps any. Thanks.

2006-08-28 12:57:42 · 6 answers · asked by Kiko 3

C2H5NH2 + H2O <-> C2H5NH3+ + OH-

2006-08-28 12:56:01 · 3 answers · asked by RED MIST! 5

2006-08-28 12:21:16 · 21 answers · asked by Oversix 2

Discus the consequences of the solvent properties of water in relation to water pollution eg. hardness (temperature and pressure), leaching in soils

2006-08-28 12:21:13 · 1 answers · asked by molly 2