Chemistry - November 2006

2006-11-24 01:16:36 · 5 answers · asked by Catherine D 1

2006-11-24 00:48:59 · 6 answers · asked by Salah A 1

2006-11-24 00:47:55 · 10 answers · asked by nanrezhel10 1

2006-11-24 00:04:09 · 1 answers · asked by sdl19475 1

Please feel free to be technical or not.

2006-11-23 23:28:39 · 6 answers · asked by gooner_1982_uk 1

2006-11-23 23:18:27 · 1 answers · asked by Mayur D 1

2006-11-23 23:02:48 · 21 answers · asked by Anonymous

I don't have scales but was curious.

2006-11-23 22:13:08 · 7 answers · asked by hot_wheelz_2000 1

2006-11-23 21:47:46 · 8 answers · asked by gequez8 1

This is about the exchange of substances. Thanks!

2006-11-23 20:51:03 · 2 answers · asked by MiG 1

2006-11-23 20:49:19 · 8 answers · asked by Shaide 2

2006-11-23 20:43:01 · 1 answers · asked by Papa T 1

This is related to the exchange of substances in the protoplasm I think.

2006-11-23 20:22:20 · 0 answers · asked by MiG 1

How do you know which reaction is slow by looking at heat of reaction or activation energy?

2006-11-23 18:12:37 · 9 answers · asked by passion flower 1

ok so there are following three steps
A+F ---> AF Activation energy: +2 KJ/mol Heat of Rx= -.1 KJ/mol
AF+H -> AFM+ TM Activation E: +10KJ/mol Heat of Rx= +5.2 "
AFM+ F->AF+ TM Activation E: +15 " Heat of Rx= -6 "
I have to find which one is the rate-determining step : one thats slowest. This stuff is from the beginning of equlibrium. And for potential energy diagram which step should I use?

2006-11-23 18:04:35 · 3 answers · asked by passion flower 1

hybridization orbitals formed by oxygen atom
hybridization of carbon atom in carbon disulfide
hybridization of sulfur atom in SO2
hybridization of sulfur in SF4
hybridization of central oxygen atom in ozone O3
hybridization of iodine atome in periodate ion

2006-11-23 16:21:56 · 2 answers · asked by collegemom 2

My teacher was like breathing in 100% oxygen is bad, how is that bad I mean?? Isn't that the only thing we inhale and use. I just don't get it.
Well I suppose too much of a good thing is a bad things

2006-11-23 15:50:09 · 10 answers · asked by Mr. X 3

The equations given in the problem introduction can be added together to give the following reaction:

overall: .

However, one of them must be reversed. Which one?


The equations given in the problem introduction can be added together to give the following reaction:

overall: .

However, one of them must be reversed. Which one?

The equations given in the problem introduction can be added together to give the following reaction:
C2H4+H2O----C2H5OH
However, one of them must be reversed. Which one?
C2H5OH+3O2---2CO2+3H2O
C2H4+3O2---2CO2+2H2O

2006-11-23 15:19:42 · 1 answers · asked by diana t 1

2 moles of a compound are allowed to react in a foam coffee cup that contains 126 grams of water. The reaction caused the tempeature of the water to rise from 21 to 24.7 degrees Celsius. What is the enthalpy of this reaction? Assume that no heat is lost to the surrounding or to the coffee cup itself.

2006-11-23 14:56:49 · 4 answers · asked by diana t 1

2006-11-23 14:51:21 · 2 answers · asked by Anonymous

I'm going to a convenience store, gas station, or I could go anywhere else, and I wanna buy something to power my Zippo lighter. Any suggestions?

2006-11-23 14:46:10 · 4 answers · asked by Jon 1

I know what happends to soda when mentos mints are added, but does anyone know what happends if mentos were added to flat soda?

Thank You

2006-11-23 12:51:52 · 6 answers · asked by Chai L 2

Predict the products of the following neutrailation reactions and balance the chemical equations.
d) carbonic acid and potassium hydroxide

e) Nitric acid and calcium hydroxide

2006-11-23 12:41:04 · 3 answers · asked by avant1991 3

give the method

2006-11-23 11:19:32 · 9 answers · asked by candy 1

what is the product when br2, hv reacts with 3-methylpentane?

2006-11-23 11:19:06 · 2 answers · asked by asdinva 1

2006-11-23 11:17:48 · 5 answers · asked by Ozzie 1

Im about to make a smoke bomb out of sugar and potassium nitrate
is theis legal?

2006-11-23 11:16:40 · 4 answers · asked by mark_manuel680 2

here's a few questions, can u help me?
1) what is it called when materails are heated the get bigger?
2) what is it called when materails are cooled they get smaller?

3) what is it called the teperature at which a liquid changes to a gas?

4)what is it called when a solid changes to a liquid?

5)what is it called when a substance is squeezed?

6)what is it called when a liquid changes to a gas?

2006-11-23 10:51:29 · 11 answers · asked by kiedokl 2

Can anyone tell me an example of an industrial use of chromatography. Particularly Thin Layer Chromatography if its possible. - Again answers in most basic english please as my brain is tired. Thanks everyone

2006-11-23 10:50:57 · 5 answers · asked by Perfect-Angel84 2

I've had a set of fireworks in my basement for a while now, and I keep forgetting to use them. After a certain amount of time passes, will they "go bad" and not be as explosive?

2006-11-23 10:46:10 · 4 answers · asked by Jon 1