Chemistry - September 2006

I don't need answers, I need help and an explanation. Also,can you check if these 2 are right?
For example
1) .560 = 10^2
2)1.01 * 10^2 = 101

2006-09-18 08:46:21 · 5 answers · asked by SlimeZone.com 1

I need to know this for chemsirty class and i can't find it anywhere.

2006-09-18 08:13:21 · 8 answers · asked by ozzy 2

I was doing a chemistry experiment with silver nitrate and it got all over my hands and stained them. How can I get it off?

2006-09-18 08:04:11 · 4 answers · asked by ND 1

2006-09-18 07:44:25 · 9 answers · asked by peggy 1

what is the chemical reaction in brewing beer

2006-09-18 07:06:28 · 7 answers · asked by Anonymous

Has anyone done one that they thought was really fun? (we're talking high school here) I've thought about doing pH tests on soil, etc. But what do you think?

2006-09-18 06:45:28 · 6 answers · asked by Anonymous

2006-09-18 06:39:42 · 2 answers · asked by milind_dolhare 1

An atmospheric chemist fills a gas-reaction container with gaseous dinitrogen pentaoxide to a pressure of 111 kPa, and the gas decomposes to nitrogen dioxide and oxygen. What is the partial pressure of nitrogen dioxide, PNO2, (in kPa) when the total pressure is 187 kPa?

2006-09-18 06:35:49 · 2 answers · asked by Lauren 1

I had a lab this past thursday where we had to find the density and specific heat of an UNKNOWN metal. My SH and D were both CLOSE to both Zinc and Iron. My metal looked like a light gray substance and it looked like it had at one point been melted and dropped into small hershey kiss shapes. Can anyone tell me some physical characteristics that would deem it one or the other. Thanks.

2006-09-18 06:17:17 · 4 answers · asked by Angel Eve 6

Bigger pka = stronger acid? i.e. if there were two acids with one having pka of 3.25 and the other one 1.8, the first one would be stronger?

2006-09-18 05:50:46 · 9 answers · asked by atomic blue 1

If the absorbance of a solution is 0.72 at 480 nm and it is 3.5*10^-7M, what is the value and units of eb at the wavelength at which the absorbance was read?

2006-09-18 05:49:33 · 7 answers · asked by Anonymous

This chemical is used in Pharmaceutical, food & drink industry either as active or excipient. It is also used in some chemical related industries. it has a potential for absorbing and retaining water hence needed to be dried before usage in dry products. The above question is a method of drying this chemical. Please explain.

2006-09-18 05:44:45 · 2 answers · asked by ella s 1

how many protons are present in ^37 Cl

i.e. Cl with a molecular weight of 37 (or so i assume)

2006-09-18 04:33:32 · 7 answers · asked by Paul S 2

2006-09-18 04:03:02 · 21 answers · asked by Anonymous

2006-09-18 03:28:16 · 8 answers · asked by Sterlin H 1

A)3.5 B)5 C)7 D)14

2006-09-18 03:05:56 · 3 answers · asked by gujarpc 1

i would like to change the absorbancy of a diaper by changing only one variable

2006-09-18 02:30:31 · 5 answers · asked by Anonymous

I would like one that has infomation on whether the oxide is basic or acidic or amphoteric. thanks =)

2006-09-18 01:49:03 · 10 answers · asked by a fellow human 2

2006-09-18 01:02:24 · 8 answers · asked by Ilyas S 1

help me pls....

2006-09-18 00:30:43 · 2 answers · asked by Anonymous

water

2006-09-18 00:30:18 · 7 answers · asked by Roxy 1

I am curious about soap. How is it that early man learned of its significance, what it was made of then, what it is made of now, why it is needed to obtain cleanliness that water alone cannot do

2006-09-18 00:12:06 · 3 answers · asked by Steven S 2

2006-09-17 23:51:45 · 8 answers · asked by Roxy 1

2006-09-17 21:29:07 · 7 answers · asked by jeff c 1

2006-09-17 19:29:01 · 5 answers · asked by kristine lovele n 1

2006-09-17 19:16:32 · 9 answers · asked by Mihir Durve 3

2006-09-17 17:51:48 · 12 answers · asked by Anonymous

what is the theoretical yield of Ag2S when 0.200 grams Ag reacts with 150 liters O2 at STP and with 65.0 mililiters of 0.350 M H2S solution?

Ag + O2 + H2S ------> Ag2S + H2O

2006-09-17 17:40:14 · 4 answers · asked by yoo whoo 1

can you explain this process?

2006-09-17 17:29:38 · 3 answers · asked by J C 1

why is the counting unit (the mole) used so often in chem instead of a mass unit? I really don't understand.

2006-09-17 17:21:25 · 6 answers · asked by Anonymous