Chemistry

I've been re-watching Red Dwarf recently, and its got me thinking about the effects of time on every day objects. For those unfamiliar with the premise, theres a huge city sized ship, Red Dwarf, and due to a disaster (the specific effects of which we will have to ignore, because the description provided by the writers is riddled with flaws its self) the ship was essentially left untouched for 3 million years. One sole crew member was in "stasis" at the time of the accident, and was released from stasis 3 million years later. So with that in mind, we will assume that the atmosphere within the ship stayed exactly the same as the Earth's atmosphere for 3 million …

I just got a program called Orbital Viewer at http://www.orbitals.com/orb/ov.htm. It says that it can make simulations of molecules but I can't seem to get them to work. If anyone can help me that would be great.

You can solidify oxygen using an environment with substantial pressure and extremely cold temperatures correct? Also, can you make like mercury or Iron Gas?

Hello, I have been working on an idea for a class room model that would illustrate 2 topics of education: water cycles and liquid properties. The goal would be to place water in a chamber or series of chambers and apply a vacuum to lower the boiling temperature. A heat source less than 212 degrees F would be applied to boil the water and show the relationship between pressure and temperature and water phases. The water vapor would then condense and return to a liquid form and begin the cycle again demonstrating the water cycle. Research on this subject leaves me with two questions that I have been stuck on for over a week: 1. All examples I have found show a…

I just watched one of the X-men movies. Apparently, Wolverine has the adamantium claws that are "indestructible". I know that such an element/compound cannot possibly exist. But this got me thinking; what is the closest element/compound to being indestructible?

I've been studying about electron orbitals lately. I have just finished the section today, but I was wondering what do the electrons do when alloys react?

I'm not sure how to say this... Is there difference between the cathode and the anode that is there without the actual substances powering the battery? The positive and negative charges of the different electrodes are because of the spontaneous flow of electrons (in a voltaic cell). But don't you have to connect specific wires to specific parts on a voltmeter for it to record? So, if you are making an electrolytic cell and you connected it, would it spontaneously go until you applied an outside source of electrons to reverse the reaction? In other words, the cathode and the anode can only be defined AFTER the reaction has started, right?

I'm a student and i remember my chemistry teacher telling me about and experiment that a scientist did wrong. Then other scientists tried to imitate it and got the right results but tried to change it to the scientist's result and were stumped about why they couldn't imitate the data. What was the name of that experiment again, anyone know?

were could i get some potasium iodid i have a science experiment to do ( elephant tohtopast) and i need some potasium iodid any suggestions

H H | | H-C-C-O-H | | H H How is this diagram incorrect? I think it has something to do with the O-H, but can anyone confirm this? If so, why?

In the way battery works, redox reaction is taking place. My question was why does the oxidized electrons (after being used to power motor, ect...) was used to reduce another substance when instead we can keep using the electrons to power another device? or can we?

Sorry if this is the wrong place to be posting this question. I'm new to the forums. I haven't had chemistry since Sophomore year of high school. So it's been about 8 years. I'm trying to brush up before I take my placement exam for college. My question is that I can't quite understand how you find different cation values for metals. i.e. In trying to name Fe(N O3)3 it is iron (III) nitrate. How do I know when it is supposed to change it's charge value? Sorry if this is a simple question. I do not have a teacher, I am trying to self learn all of basic chemistry. Please feel free to recommend any helpful chem sites or forum pages. Thanks.

how can i make hydrocloric acid

is cellulose peroxide a real compound? if so can someone tell me some things about it? and how to make it? also can anyone tell me how to make some other cellulose compounds?

Hi, what is the name of the type of gel that they use to make gel soles for shoes and gel seat covers for bicycles? How do you make that gel? Where do I get the ingredients from? How can I either make a mold or buy a mold to control the shape of the gel? Thanks

I am a homebrewer of beer/mead. A buddy of mine picked up a nice Erlenmeyer flask for me. I would like to find some ST ground-glass adapters for it so i can adapt it to some of my other 24/40ST labglass. It appears that the flask has a thick, beaded top, end on it. 2" ID and 2.75" OD. It does not appear to be a ball-joint end fitting. Not quite sure on the nomenclature. what do you call this type of flask joint?

From one of my chemistry books, I stumbled upon the following equation: C12H22O11 + H2O + 3O2 => 2C6H8O7 + 4H2O The book explains that the product is citric acid, and I already know that the reactant is table sugar. I was wondering how I could make this. Thanks Merged post follows: Consecutive posts mergedI was thinking of burning sugar water somehow. But I don't think that will work...

Hi, A question in my chemistry 'O' level book says find out what Pitchblende is and where it comes from. I looked it up on wkipedia and it says its a compound of uranium and oxygen. U3O8 and U307 I tried to figure out whether a covalent bond could be made between the two but dont think it can unless you share the two electrons in the valence shell of uranium with the 6 in the oxygen. I thought covalent bonds had to be single, double, triplet, etc. Im I right in thinking that they will not covalently bond. im not sure how many electrons a U atom can loose being a transition element. If its a normal ion it would want to become U2+ which could balance with a…

ok so im sure there are plenty of other members on here that collect elements and when we do we usually end up with more then we need for our sample. I have lots of extras and wold love to trade what i need: k Ca Rb Sr Cs Ba Hf Os Te Po B Th U I know i can buy these but i figured if i can work out a trade with someone its better for both parties im new here so sorry if this is in the wrong section

In this video, it shows some caesium in water. But in this video, http://www.youtube.com/watch?v=eCk0lYB_8c0&feature=related, it says caesium in water is like setting off a bomb in water. Which one is more correct? Is caesium that reactive?

ok so pretty much all the gases on the periodic table have found use in lights and camera flashes by ionizing the gases which gives off a certain spectrum of colors. (and by the addition of phosphors to provide different colors) so ive seen He Ne Ar Kr Xe even Oxygen and Nitrogen but i have never seen an example of Chlorine gas Ionized. i figure thats probably because the chlorine gas "might" react with the electrodes. ("might" im not sure if it would but being a halogen i assume it would react with most, but i assume not all) but if you sealed chlorine in a vial with platinum electrodes it seems it could work....or carbon electrodes (which ever woul…

A strong acid is a substance that contains high concentration of hydronium ion, basically high concentration of hydrogen. But why are acid so reactive( or dangerous)? Is it because the intermolecular forces between the atoms of the acid are weak? Merged post follows: Consecutive posts mergedLet me re-phase the last sentence. Is it because the intermolecular forces between the atoms of the acid are weak so they are very reactive?

go to the bottom of the the website for the video http://www.howstuffworks.com/battery.htm The video was great, but it fails to explain why zinc oxidizes in that solution. Merged post follows: Consecutive posts mergedbasically my question was how did zinc loses electrons

What exactly is the difference between SN1 and SN2 reaction mechanisms?

Hello everyone, I always though when reactants are heated up, there are more collisions and more like a reaction is to take place. However this is not the case for spontaneous reaction according to Gibbs equation. Why is that? Thanks