Chemistry - March 2007

2007-03-16 01:48:57 · 3 answers · asked by gean 1

need the answer right away!!thanks

2007-03-16 01:42:48 · 8 answers · asked by gean 1

Does the amount of concentration of hydrogen peroxide affect the speed at which oxygen is produced??
And how could I prove this in an experiment?
txs

2007-03-16 01:04:26 · 5 answers · asked by well.theres.a.few 6

2007-03-16 00:50:48 · 1 answers · asked by kohlirosy 1

a. N2
b. Cl2
c. CO2
d. CO

2007-03-16 00:46:22 · 6 answers · asked by Atticus 1

2007-03-16 00:45:37 · 6 answers · asked by kohlirosy 1

"I love you, you know it's true
and I can make you happy if you love me too"

and there's some stuff about "the place where I am goin' is around the bend"

It was on this episode of Scooby-Doo..they go to a haunted Chinese temple because Daphne buys a golden mask or something..
and the song's STUCK IN MY HEAD!!
please help!!

2007-03-16 00:30:30 · 1 answers · asked by eatdungumbridge 3

Could one explain this sort of chemical reaction?

2007-03-16 00:28:34 · 1 answers · asked by Anonymous

2007-03-16 00:21:34 · 3 answers · asked by sankamesh_r 1

70 F-C

60F-C

2007-03-15 23:42:53 · 4 answers · asked by shahira 1

2007-03-15 23:23:17 · 13 answers · asked by livefast_dieyoung 2

What is the T2 of C13 poly actylene as a function of temperatue?

2007-03-15 22:50:14 · 2 answers · asked by Robert S 1

2007-03-15 22:29:21 · 4 answers · asked by shashafernandez 2

We could expect some abilities by studying the periodic table but do you think that sooner or later we are going to build a material with strange powers??

For EXAMPLE: some UFO conspiracy theory says that UFO's fuel is a material we don't yet have (with atomic number 126-i dont remember exactly the number or the name... i think the name of that material is uuvulmasomethin...i believe you get the point you'll know better ).

I want to say: HOW "EXOTIC" DO YOU BELIEVE THESE MATERIALS WHICH WE CANNOT BUILD YET COULD BE??? WHERE IT WOULD BE USED???


p.s. i know about the magic number of the electrons and the protons and why we cant build "Steady" atoms of these materials yet. please answer to the question in capitals

thank you in advance!!

2007-03-15 22:20:30 · 3 answers · asked by Anonymous

.... can compounds only occur when atoms bond?
what are the advanatges of compounds and what are the advanatages of an atom being stable

2007-03-15 22:04:53 · 2 answers · asked by Anonymous

i want to determine iron in water sample using UV spectroscopy. but iron in the sample must be in Fe(II) condition before react with ligand or 1,10-fenantrolin.why it is so?why the intensity of the complex formed is depend on the pH of the solution?

2007-03-15 21:24:22 · 1 answers · asked by arifah r 1

a. electrons cannot cancel incoming electric fields
b. they generally contain water
c. electrons are free to cancel incoming electric fields
d. they tend to have smooth surfaces

2007-03-15 21:21:08 · 1 answers · asked by Anonymous

state why phosphate rock (Calcium phosphate) has limited use as a phosphorus fertilizer, how is the phosphate rock treated to allow plants to access the phorsphorus?

2007-03-15 21:03:28 · 1 answers · asked by Anonymous

2007-03-15 20:10:12 · 1 answers · asked by jaison j 1

2007-03-15 19:55:19 · 3 answers · asked by snoogs73 1

2007-03-15 19:28:59 · 1 answers · asked by Anonymous

2007-03-15 19:23:38 · 1 answers · asked by Anonymous

2007-03-15 19:16:34 · 1 answers · asked by raceie32 1

A sample of octane is burned in a bomb calorimetergiving off 20.9 kJ of heat. The temperature of a 1155 gramquantity of water increases by 3.68oC. Calculate the calorimeter`s heat capacity.The specific heat of water is 4.184 J/goC

2007-03-15 19:15:13 · 2 answers · asked by ? 4

the 7 constitutional isomers are:
2-butanol
1-butanol
diethyl ether
methyl isopropyl ether
methyl propyl ether
2-methyl-1-propanol
2-methyl-2-propanol

2007-03-15 18:34:42 · 1 answers · asked by robotic1 1

2007-03-15 18:25:56 · 11 answers · asked by Anonymous

A) diffusion

B) osmosis

C) active transport

D) evaporation

E) atomic energy

2007-03-15 18:17:22 · 1 answers · asked by max 1

I have a science assignment and i have no idea how to work out the atomic weight. plz help, thanx!

2007-03-15 18:07:25 · 6 answers · asked by invisible_me123 1

2007-03-15 18:01:02 · 0 answers · asked by tamy 1

Do alcohols undergo reduction reactions ? Explain with reason.

2007-03-15 17:54:46 · 1 answers · asked by Rajchem 2