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chemistry, websites Sticky Thread Pinned: Good chemistry websites ( 1 2 3 ... Last)
I think that these links can be interesting: PeriodicTable: http://www.webelements.com/...
Y 03:49 PM
djh101
114 126,515
chemical, latex, typeset Sticky Thread Pinned: Chemical LaTeX typeset ( 1 2 3 ... Last)
Physicsforums now has a very cool feature, which enables complex typesetting for formulas or equations! A tutorial...
Jul7-13 04:53 PM
jackmell
64 136,733
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 36,396
How could someone roughly calculate flame temperature? Lets say that a chemical reaction occurs at 1000F and the...
Sep1-10 01:43 PM
Topher925
4 8,096
Why is it important? I know it is a measure of the disorder of the system and the amount of possible outcomes. If it...
Sep1-10 02:28 AM
iratern
4 3,205
I'm trying to think of a way to take a piece of aluminum foil and chemical separate the atoms 1 by 1. I was...
Aug31-10 04:20 PM
Borek
6 1,811
i read about this project for making carbon nanotubes from industry exhausts. is this possible/viable? if so, how...
Aug31-10 03:47 PM
samblohm
1 946
I've seen ions notated with the postive or negative sign both before and after the element name (usually after). Is...
Aug30-10 07:11 PM
Acut
3 3,008
Hi there! I have a quick question that could use some clarification. According to my textbook, an oxygen atom has an...
Aug30-10 08:19 AM
Widow
3 6,739
I've researched online and can't find the temperature that burning phosphorus (red and white) reaches. Judging by the...
Aug30-10 04:53 AM
alxm
3 3,559
When drawing a Lewis structure for a compound how do you know what bonds to what? For example, with H2SO4, how does...
Aug30-10 02:33 AM
Borek
1 1,001
Hi all, Just wondering if any of you can recommend some further reading for a Sixth Form student who has just...
Aug30-10 01:48 AM
SkepticJ
1 1,056
Can it be done? I tried stacking cells made with 1€ coins + 50c coins separated by some tissue soaked in sea salt but...
Aug28-10 03:47 PM
SlidemanD
7 2,718
Hi All, I have been searching the web for days now, trying to find a way to selectively reduce Fe(III) to Fe(II)...
Aug28-10 03:44 PM
espen180
3 1,443
Many people believe that plant-derived compounds are healthier than their "identical" artifical petrochemical...
Aug28-10 01:47 PM
Borek
3 1,493
This is NOT homework, im just confused on how to name this organic compound. My chemistry teacher got quite of...
Aug28-10 03:41 AM
epenguin
4 4,474
Hello all! I am reading through a combustion text and I am a little flustered by this notation: ...
Aug27-10 10:35 PM
Saladsamurai
1 1,205
Hi all, i'm trying to figure out the difference between iron and stainless steel. Other than maybe the appearance,...
Aug27-10 08:01 AM
Astronuc
8 14,197
Are there any compounds that are considered "organic," yet do not contain carbon?
Aug26-10 10:28 PM
ldv1452
7 7,501
There exist such interesting issue as intercalation, which seems to allow, for example, to store 4.4 intercalated Li...
Aug25-10 04:54 PM
Stanley514
4 1,663
On the table of elements chart it's known that many of the elements are man made? or at least a few of them? Curious,...
Aug25-10 04:37 PM
StarkRG
5 2,103
This seems to be a very simple (stupid) question: If an inert gas is purged inside a distilled water container,...
Aug25-10 02:55 PM
Borek
13 2,836
I am a software engineer of 20 years and would love to use my skills to somehow help work on the Carbon Dioxide...
Aug24-10 07:28 PM
alxm
6 1,331
I have a 50% carbon dioxide and 50% nitrogen gas mix at 1800psig, 70*F. Is there a reference source for the dewpoint...
Aug24-10 07:44 AM
flygyd
1 1,149
If you accidentally swallow a tiny amount of 70% ethanol in a lab, would you put yourself at a health risk?
Aug23-10 10:15 PM
cragar
9 2,168
According to law of mass action " The rate of reaciton is directly proportional to the active mass of the reactants....
Aug23-10 07:21 PM
epenguin
4 2,345
I'm not a science student. So, please be simple and straightforward. I remember once I smelled a sample of urine...
Aug23-10 06:46 PM
epenguin
3 2,864
Does mixture of hydrogen and oxygen actually has to be ignited or the reaction occurs even without ignition when some...
Aug23-10 10:52 AM
alxm
7 3,802
In a book I read that theoretically it is not possible to see atoms even if high quality microscopes are used. So why...
Aug23-10 09:20 AM
Borek
3 1,024
Does anyone know where I can find Partial Energy Level Diagram for Hydrogen? Thanxs.
Aug23-10 09:11 AM
bharata
4 13,251
Hi all, I need some help! some info: Penicillic acid : an antibiotic substance produced by several species of...
Aug23-10 08:09 AM
proca
1 1,444
I'm a graduate student in engineering, working primarily with organic chemicals. I've had coursework in inorganic...
Aug22-10 12:48 PM
kmichel1985
0 1,141
Dear all, I'm now trying to make mozzarella cheese. The recipe wrote that use 1 1/4 tsp. for a gallon of milk (I...
Aug22-10 07:13 AM
yibyib
4 4,241
hi. please introduce me best site for search supplier?
Aug21-10 11:15 PM
viela
4 1,184
I'm not a science student. So, please keep your reply simple and straightforward. Thank you. In India many people...
Aug21-10 04:42 PM
hamster143
10 5,590
I am a college student and I am very serious when it comes to science. I am looking for a chemistry textbook that...
Aug21-10 03:43 PM
sodium.dioxid
0 1,104
Hi What is the reaction of calcium carbonate and water. I thought it was insoluble but I was looking up some notes...
Aug21-10 09:06 AM
Borek
14 31,624
Very basic (I'm a high school student): Background I'm studying a chapter in my textbook titled 'Energetics'. It...
Aug21-10 07:26 AM
jeremy22511
3 1,431
i just saw a post which explain the principle of polarimetry here:...
Aug20-10 11:56 PM
mcwhk
1 1,054
Hi I guess the title says it all. Why does heat start a combustion reaction? Why does a spark start a...
Aug20-10 01:53 PM
Moogie
20 6,177
What upper division math courses do you recommend for a chemE major?
Aug19-10 11:19 PM
john562
0 1,159
Ok, so say I have a system at a global temperature, I add an energy source (laser in this case) and it heats the...
Aug19-10 11:05 PM
alxm
1 664
Hi ! I've heard about a concert, I think, where it started to rain pretty much. Then the band, had a chopper or...
Aug19-10 04:33 PM
Borek
8 3,754

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