Chemistry

Does anyone know how hot some glass, say a jam jar for example can get before it cracks?

isotopes... how do they become isotopes? Im serious, they dont teach you this stuff in Secondary schooL! argh, i feel so dumb.

How to balance an oxidation-reduction (redox) reaction using matrix method? Where should I account for the electrons?

Hi, I'm a GCSE student about to sit my GCSE exams, but there's one thing really thats really bugging me about chemistry. Equilibriums. I don't understand the whole concept of it and the way you can change things to affect the point of equilibrium. My Chemistry Teacher says the Haber Process will definitely come up in the exam, and you need to understand equilibriums to understand the Haber Process. Could anyone please explain equilibriums to me without using advanced Scientific jargon? I'd be really grateful if you could.

http://web.lemoyne.edu/~giunta/week.html http://todayinsci.tripod.com/ http://schulen.eduhi.at/chemie/back.htm GREAT SITES ! Each day, you can visit the site and see what happened that day in the history of chemistry. Go look, and let me know what you think about it ! Example : Today 10 may 2005 In 1860, the discovery of the element caesium was announced by German chemists, Robert Bunsen and Gustav Robert Kirchoff to the Berlin Academy of Scientists. It was first noticed by its characteristic blue spectral lines, for which colour is was named.

How many can you think of (and name with properties). Anamantium (not spelled right) From X-Men A very shiny non mallibule non corrsive mettal that is virtually industrucitiable and once forged cannot be destroyed. Naquada From SG-1 Non radioactive highley reactive super heavy element looks like grafite. Naqaudria SG-1 same as naquada but more reactive and is more unstable. Maclarium SG-1 does not exist in nature atomic weight over 200 most likley non radioactive.

this is sort of a simple question, but how do you figure out the charge an ion will have when it is dissolved and what the ion itself will be? Ive always known alot of ions just by memory so i dint really need to know, but if i dont know one, can i use the periodic table to figure it out or something of that sort?

lol i need to know if am doing this right....vitally! (ok thats not the right word, maybe quickly? i dunno anyways, i'm rambling...) the question is: "identify the functional groups present in indigo" i would say there are the CO and NH functional groups (whatever the names of them are?) how far off am i? lol or right on the money? (hopefully! ) this is the structure:

what would conduct more electricty: copper(I) sulfate (Cu2SO4) or copper (II) sulfate (CuSO4)?

The decomposition of sulfuryl chloride, SO2Cl2, is described by the following chemical equation: SO2Cl2(g) <-----> SO2(g) + Cl2(g) (i) At 670 K, the following equilibrium concentrations were observed: [sO2Cl2] = 0.0678 M, [sO2] = 0.0243 M, and [Cl2] = 0.121 M. Calculate the equilibrium constant Kc for the reaction at 670 K. Is this right? Kc = [sO2] [Cl2] = 0.0243 x 0.121 = 0.00294 (ii) From your answer in (i), which side of the reaction does the equilibrium favour at 670 K? Justify your choice. (iii) At the higher temperature of 1250 K, the value of Kc is 85.3. If 0.152 moles of SO2Cl2(g), 0.336 mo…

If you had a superheavy element perhaps somthing that had an atomic number of over 100 (107 etc) would it be a liquid Solid or a gas? Sorry if this is a stupidly obvious question. I wouldn't have thought that the Atomic number would have anything to do with it, But I am unsure. Also, How would you give an element like this energy.? Sorry for my stupid questions! I'm am not exactly top of my class. thanks xXx

Hi! I am a french Canadian and I need some help from you to translate some french chemistry-related terms in English. My researches in french on google didn't satisfied me, and I wanted to look for english sites. I'm only looking for translation of some terms to look for them on the net, but if anybody has the time to answer my question,s I would apreciate a lot. Here are the facts: (Words surrounded bye " " are french words that I couldn't translate. I tried to aviod as much as I could.) I'm studying chemistry in high-school and we have to do a report on the "titrage" (maybe those graphs will tell you what is "titrage": http://www.al.lu/chemistry/stuff1/EX1/notions/…

I need to make an experiment that proves either Boyle's, Charles, or Gay Lussac's law by tomorrow morning. The simpler the better please as I don't have the time to get any advanced material. Any helped would be extremely appreciated!

apparently you can get some from inside speakers, but that last speaker i had there wasn't any inside, is it to do with quality, size, age or what? is there ferromagnets inside speakers? if so, which ones?

hello everyone, im new! i need a chart that has the pH values for blue litmus paper. lol. might b an odd request, but i would appreciate it if i could get an answer soon thx

on this state test we were taking there was a lot of controversoy about the right answer for this simpele question but somehow not so simple: what metal reacs in the closest manner with copper sulphate solution as mg does? A. aluminum B.Calcium C sodium D potassium

would it be possible to get some help (i.e. check that i am not making giant mistakes) with the first problems about my chem. prac. that is at the end of the attached word document?

Whats is the unit of measure of how lethal or how much of sometin it takes to kill someone? like i know water even has one. I was just gonna see how much chromium oxide it takes/ how poisonous it is.

As temperature rises, the kinetic energy of particles increases and this increases their chance of collision to form a stable compound. If the temperature increases, will some particles combine less than past as they fail to attract the other due to their high speeds?

I need help making boric acid. I have borax decahydrate(Na2B4O7) and sulphuric acid(2 mol/litre). Can anyone help me? Please include ratios. I also need help making propyl formate from propanol and formic acid(ratio please again). What kind of solvent should I use to extract scents and pheromones from ants? Apparently alcohol don't work well since it will react with formic acid.

Hi there I am a Ph-D student in Techno-Economics, interested in techno-science policy, especially in the area of nano technology. I would like to know about chemistry in general to understand what is the fundamental promise contemporary chemical science can make and what is the fundamental limit of nano science etc, very very broadly. My current knowledge about chemistry is equivalent to high school student who have read one or two basic text books. I do not want to know cumbersome mathmatical fomular, but theoretical foundations and practical implications. Could you recommend around 10 text books for self study? Thanks

Hello everyone. ¿ Any suggestions on which chemical doped with cations could be applied as a paint, yielding a semiconductor structure similar to silicon when dried ? Thanks, Miguel

Please help! I need to know how you can use the periodic table to make predictions of the soluabilities of compounds of groups1 and 2 ... and also 16 adn 17. mainly magnesium carbonate, sodium carbonate, potassium carbonate, and calcium carbonate... and also copper (II) oxide, copper (II) chloride, copper (II) bromide, and copper (II) sulfide. PLEASE HELP!

I was wondering if i could Buy potassium Bisulfate or sodium bisulfate at like a hardware store and if i cant how could i synth it?

i got a glass tube that is in the form of a Z. Does anone know what they are used for?