Chemistry - December 2006

What is the acid produced by bacteria on our teeth?

2006-12-23 15:37:11 · 6 answers · asked by formystudies3 1

Idea is to remove the toxic contents of the tanned leather which has for some reason not useful for commercial use, and make use of the extract for future tanning, it saves cost plus can be used to certain extent to help keep nature less pollutioned or otherwise to help environment free of pollutions.

2006-12-23 15:10:08 · 2 answers · asked by MAADABUSHI R 1

ok. qmm states that the first orbital is the closest to the nucleus, right?

and...the electrons are attracted to the protons, right?

then how do the electrons, in say, helium, stay orbiting, and do not "fall into" the nucleus.

2006-12-23 14:13:26 · 11 answers · asked by Zapking 2

I was just wondering this after seeing the episode of Bones when they were trapped in the car. If you could put the chemical equation and why it reacts I would be very grateful because I have been trying to search for the answer on teh internet but haven't found anything?

2006-12-23 14:08:06 · 5 answers · asked by Ryan C 2

it's an ester..

2006-12-23 13:35:27 · 4 answers · asked by pinkiezbox 1

neutrons, protons, electrons came from something. what were the precursors?

2006-12-23 12:24:49 · 10 answers · asked by elias 2

I'd heard it was because poor quality steel was used to build it.

2006-12-23 11:18:09 · 10 answers · asked by Anonymous

2006-12-23 10:27:10 · 18 answers · asked by Anonymous

What materials can undergo carbon dating? How are monuments such as Stonehenge in England dated?

2006-12-23 09:41:16 · 5 answers · asked by mikepatelaros 1

What are the roles that each reaction play on photography?
How are the products of thr reactions used by the idustry?

2006-12-23 08:34:49 · 3 answers · asked by nice too meet you. 4

which types of fatty acid (saturated or unsaturated) is least beneficial? and why?

2006-12-23 08:07:23 · 5 answers · asked by LESKid 1

The most important question better explained is "at what pH we will get the end point of the reaction to utilize ALL the Caustic Soda Lye that we started with?"

2006-12-23 07:47:04 · 1 answers · asked by Ambrish K 1

I used caffeine as an internal standard in this experiment and i used this experiment is HPLC instrument

2006-12-23 07:23:26 · 3 answers · asked by alasad224 a 1

1.what yu do to the wrinkles when you iron a shirt? the answer is NOT iron.
2. function of a bullet-proof vest?

all answers have to be a real element from the periodic table.

2006-12-23 06:58:59 · 2 answers · asked by FrancetichSketch 3

Also does anyone know what are the environmental impacts of photography? Any websites that provide this information would be alot of help!

2006-12-23 06:43:08 · 5 answers · asked by nice too meet you. 4

2006-12-23 06:02:06 · 8 answers · asked by TIN 1

2006-12-23 05:38:16 · 11 answers · asked by akshay p 1

2006-12-23 05:20:52 · 14 answers · asked by Cathony R 1

Joules, calories, BTU, foot pounds, electron volts, ergs. It would be very helpful. Come on You Chemists!!!!!

2006-12-23 04:39:54 · 2 answers · asked by A-dawg 2

The procedure in my lab asks to dilute pottasium iodate solution (0.2 M) in test tubes, by adding specific volumes of water to the solution (in every test tube place one drop of water more than the previous tube). Then we pour into the test tubes 10ml of (0.001 M) NaHSO3 and wait for a dark bluish colour to appear. My question is, why is it important to add specific volumes of water when diluting pottasium iodate? The purpose of the lab is to figure out the order of reaction of the iodate ions in this experiment.

2006-12-23 04:37:04 · 1 answers · asked by S 3

Where does it come from? Does it harm waste-water treatment plants? How does it work? Did old timey people have it? When was it invented?

2006-12-23 04:28:29 · 3 answers · asked by Anonymous

Just cant remember how to solve these types of chemistry questions. Question asks you to suggest the formula of sodium chlorate(v) - something to do with the (v) but what?

Thank you!

2006-12-23 04:01:37 · 5 answers · asked by Anonymous

whats the answer?

2006-12-23 03:27:56 · 9 answers · asked by Keith L 1

2006-12-23 03:02:36 · 6 answers · asked by Anonymous

2006-12-23 02:39:24 · 23 answers · asked by redtash2000 1

PLS PLS does anyone know theoretical background of polarimetry that includes the physical and chemical background coz i have a report due tuesday and i dont know the answer..DETAILED IF POSSIBLE
THX =)

2006-12-23 02:29:23 · 2 answers · asked by ramy sbry 1

2006-12-23 02:13:55 · 3 answers · asked by Alexander Vasarab 2

2006-12-23 01:57:17 · 1 answers · asked by ramya s 1

2006-12-23 01:26:09 · 3 answers · asked by brandon 5

2006-12-23 01:25:10 · 3 answers · asked by brandon 5