Chemistry - May 2007

2007-05-25 16:48:03 · 6 answers · asked by Susan 1

2007-05-25 16:38:15 · 3 answers · asked by Anonymous

2007-05-25 16:30:53 · 5 answers · asked by Anonymous

For my daughtesr 8th Grade Science project she has to make a volcano. but her and her friends dont want to do the vinegar and baking soda trick. She want to make a chocolate volcano. any tips on how to do that?

2007-05-25 16:20:41 · 4 answers · asked by BonesFreakk 1

60 Carbon atoms, I mean.

2007-05-25 14:41:35 · 7 answers · asked by skywarp2509 2

2007-05-25 14:37:21 · 1 answers · asked by bubble 1

2007-05-25 14:24:33 · 9 answers · asked by ERICA_ZION77 2

a. copper
b. gold
c. platinum
d. silver

2007-05-25 13:56:35 · 5 answers · asked by AEL 1

Some time ago I saw on a tv science program on how to put a brass coating on metal I think it was a metal bolt.

I have forgotten most of the details.
It seems you put in zinc powder or something like it and then added another coating and then subjected to a naked flame
apparently it then formed a brass coating from the two metal additives any one know how it was done.
Geoff

2007-05-25 13:52:39 · 2 answers · asked by Geoff E 1

a. a salt
b. an acid anhydride
c. a basic anhydride
d. a spectator ion

2007-05-25 13:30:31 · 10 answers · asked by AEL 1

In a reversible reaction, how does the activation energy required for the exothermic change compare with the activation energy required for the endothermic change?

2007-05-25 13:19:40 · 3 answers · asked by Rosy 2

Where, in terms of energy, does the activated complex occur along a typical reaction pathway?

2007-05-25 13:18:32 · 1 answers · asked by Rosy 2

Reactions with large equilibrium constants are very fast.

2007-05-25 13:08:28 · 4 answers · asked by Emily C 2

a)C5H10 b) C5H12 c) C6H10 d) C6H12 e) C6H14
f) C7H14

2007-05-25 12:35:38 · 2 answers · asked by Yayan 1

Hydrocarbons can be classified as saturated or unsaturated.

2007-05-25 12:30:28 · 5 answers · asked by Yayan 1

2007-05-25 12:27:39 · 1 answers · asked by love2nnelly 1

A) acids
B) bases
C) acidic anhydrides
D) basic anhydrides

2007-05-25 12:19:37 · 5 answers · asked by ? 1

A) Magnesium
B) Calcium
C) Strontium
D) Barium

2007-05-25 12:12:54 · 5 answers · asked by ? 1

A concentrated sulphuric acid solution has a density of 1.83 g/cm^3 and contains 94.0% of sulphuric acid by mass

(a) What is the mass of sulphuric acid in 1dm^3?
(b) What is the concentration of the sulphuric acid solution in mol/dm^3?

2007-05-25 11:48:06 · 1 answers · asked by Stormy Knight 1

is there a correlation between an atoms electronegativity and any physical property?

2007-05-25 11:46:47 · 3 answers · asked by taulmachof 1

2007-05-25 11:23:34 · 6 answers · asked by BUGGZ 3

I'm looking to purchase a new pool heater and one says it runs on low NOx natural gas while a different model runs on normal natural gas. Can someone tell me the difference?

2007-05-25 11:19:31 · 2 answers · asked by imtheonlyone1992 2

2007-05-25 10:41:33 · 6 answers · asked by Rockstar 6

2007-05-25 10:08:49 · 4 answers · asked by Justine 1

ok, how do batteries work? who invented the modern battery? and how does the battery made by that inventor differ from the ones we use today?

2007-05-25 09:53:01 · 1 answers · asked by lil aj 1

Compounds have properties that are different from those of their constituent elements. Can anyone give me an example to support this statement? Thanks!

2007-05-25 09:50:36 · 11 answers · asked by duck_michelle 3

How to draw 2 different possible Lewis Structures for butene?

2007-05-25 09:46:57 · 4 answers · asked by Anonymous

Just had a chem test today, and I want to know the answer to the one question. It said, "A guy was baking muffins. The ingredients were baking soda and lemon juice. He doesn't like the lemon juice so he takes it out. Why is this a bad idea?" I said something about the acid neutralizing the baking soda such as tums neutralizing acid within the stomach. Thanks.

2007-05-25 09:40:28 · 4 answers · asked by Anonymous

2007-05-25 09:31:27 · 6 answers · asked by Anonymous

2007-05-25 09:27:27 · 7 answers · asked by Anonymous