Chemistry

Ok, I just had a thought run through my head, and my foot, but that's besides the point...Are there such things as complimentary elements? By complimentary I mean, if you were to get their atoms to react together, would they form a different atom? If so, how could that be done?? My thought was to have the 2 complimentary elements in a gas form, and spin them at ridiculous speeds in opposite directions in 2 different cyclotrons...then open a gateway bewtween the cyclotrons so that the atoms would collide, forcing them to come in contact. Would this work? Would I also have to add a few neutrons, protons, and electrons into the mix before the collision? Im sorry if…

Well. I want to know about the quarks, mesons, etc? do any of you know the speed of quarks??

Hoping I wouldn't sound like a complete dumbass, or even at the rist of it...... I'm trying to review my Chem and I forgot some of the basics and it is really pissing me off. I know that electrons want to ocupy the lowest level shell, and if they need to move to the next energy shell that excerts energy, etc. So, that said, taking Ca and breaking it down to it's electron configuration, which is the correct answer: [math]1s^2 2s^2 2p^6 3s^2 3p^6 4s^2[/math] or [math]1s^2 2s^2 2p^6 3s^2 3p^6 3d^2[/math] If it's the 1st one, why would the 2 electrons jump to [math]4s^2[/math]? Isn't the next lower lvl subshell is the [math]3d^2[/math]? Or …

Do chemistry books always simplify the equation as net ionic equation in solution area? Such as NaOH+H2O---->Na+ +OH- + H2O it simplifies as NaOH--->Na++OH It is in contrast as HCl, and it makes me confused for a while. By the way, is all reaction involved heat ?

Hello, everyone. I am learning the polarity of compound. Carbon dioxide is a non-polar molecule. I know the linear structure. Is it because when the electrons are pulled by the oxygen atom, the carbon atom has 4 positive charges and two oxygen atoms get 2 negative charge, so the oxygen atoms move towards to the central atom and the distance of the pulled electrons have equal distance with the oxygen atom and carbon atom? What will the situation if the AX the A atom have 2 positive charge, and the X got 2 negative charge, does the speed of reacting (they form covalent bond)faster than when A and X are neutral respectively? Moreover, what is the entire different b…

Many compounds have colour. Is it essential for them all containing moving ion in the body? And the ion must be tranisitional metal ion?

hi, if anyone could help me remember how to do these questions it would be greatly appreciated i just have a memory block and think i am forgetting something when trying to get the answer to these. a) How many moles of hydrogen peroxide react with each mole of permanganate in the titrationmoles of MnO4- per mole of H2O2 b) Calculate the concentration of hydrogen peroxide in the 10 mL aliquot, taken from the reaction if the titration with 0.0176 M permanganate solution requires 32.8 mL to reach the end-point c) If the concentration of hydrogen peroxide in the 10 mL aliquot is 0.0568, calculate ln([H2O2]) you don't have to answer them a little nudge in the …

I just wanted to post a thread discussing the different ways of looking at why it is not possible for anything to reach temperatures below absolute zero. Look at it this way: Molecules have energy they have to do something with this energy though, so they make themselves vibrate and move to different degrees depending on how much energy they have. If they lost all of the energy, they wouldn't move - i.e. there's no energy for them to do work with to actually move. Cooling is a process of slowing the movement of molecules in a substance, but if you cool things down, the energy has to be removed somewhere. The energy can't be removed without movement though - oth…

Hello! I live in Poland. I attend here the last class of junior high (a secondary school - I'm 16 years old). I've got many interests and Chemistry is one of them. That's why I took part in a Polish Chemistry competition organised for people of my age. I got through to the second round aswell as my school mates (11 students), mostly because of the support of the greatest teacher ever (no one teaches Chemistry like she does). The second round was organised on the beggining of this year (10th January). Before it everyone had been sure of getting through to the final, we were studying whole days & nights. After the comp we were curious of one excercises. Most of us…

Ionic compound such as sodium chloride is decomposed when it's put in water, then water molecule "take"one chloride or sodium left. At this moment, I think the formula is NaH2O or H2OCl, and its properties is changed, am I correct? And why doesn't calcium carbonate act like ammonia which is soluble in water? Buddies Help me

Do anyone have this book? Faith, Keyes & Clark's Industrial Chemicals William Lawrence Faith, Frederick A. Lowenheim. wiley-interscience. 4th ed. 1975. I need topic about Processing CuSO4 Thanks

I have two questions, could anyone give hand? 1.Why does some chemical emit smell, like sodium hydroxide? 2.Does carbon dioxide fly into atmosphere layers( its density is higher than air )? I know it does absorb heat, so this question is such for further fun

Just wondering if anybody can explain the true meaning behind the "spin" of particles e.g electrons are spin 1/2, while other particles have a spin of 0,1,2 I know that the word "spin" is only the name and not an actual description.....Cheers

Hihi I am a new member. I want to ask about ,does the bond in HF is ionic bond?

Help!! Following article is necessary: K. Kosai; T. Higashino Nippon Setchaku Kyokai Shi, 1975 11;2 If at whom is send on mine e-mail: ingger@rambler.ru or tell where it is possible to find it. Beforehand thanks P.S. Excuse for my language, used the translator

1.can anyone identify the difference between elements, compounds and mixtures in terms of particle theory. 2. describe the phyiscal properties used to classify compounds as ionic or covalent molecular or covalent network. 3. describe using diagrams ionic compounds in terms of repeating three-dimensional lattices of ions. 4. identify which elements exist as molecules or as covalent lattices thanks guys it will really help me. hopefully i am not asking to much

If you put 25 mL of 1.6 M acetic acid, then, what is the molarity of acetic acid? Is it just 1.6 M x .025 L, or is it .160 M / .025 L? And..if you have 10 mL of 0.160 M sodium acetate , what is the moles of acetate in the solution? Is it .160 M X .01 L, im getting confused with the concepts involved in here

i have a problem with MgO(s). Mg(s) → Mg(g) Heat of sublimation = +148 kj ½O2(g) → O(g) Bond dissociation = +249 kj Mg(g) → Mg2+(g)+ 2e- IE1+IE2= +2201 kj O(g)+2e- → O2- EA= +737 kj look at the EA in peiodic table O(EA= -141 kj). When O charged 2e- it seems to be like F(EA=-328 kj) charged 1e-. it should be - not +. but Why EA of O=+737kj ?

i am trying to work out these questions but i cant seem to get the right answer. any help we be appreciated. question one: Calculate the chemical amount of anions in 79.0 mL of a 0.4564 M solution of cobalt(III) chloride question 2: Calculate the concentration of anions if 100.0 mL of a 0.3530 M solution of iron(III) sulfate is diluted with water to the mark in a 500.0 mL volumetric flask

Just wondering if this is the proper structure of copper sulfate here (just as an example) then the actual bond between Cu and the SO4 ion must only be electrostatic through the water yes? If so this is true then for all molecules, FeSO4.10H2O? BaCl2.2H2O Help please this is really bugging me

does anyone know where i can find infomation and diagrams on ionic compounds in terms of repeating three-dimensional lattices of ions? Can anyone identify which common elements exist as molecules or as covalent lattices? Describe the physical properties of conductivity used to classify compounds as ionic or covalent molecular or covalent network? thanx so much

can anyone describe the formation of covalent molecules in terms of sharing of electrons.

Which would you guys say would be the most radioactive element?

1st, I spent 3 months to learn how GAMESS works. 2nd, I started usage of GAMESS to compute vibrational frequencies of non-linear system having zero total charge, correct multiplicity, etc., but the results are not correct. Only the linear configuration of the system was computed with no message "THE GEOMETRY SEARCH IS NOT CONVERGED!" & gave me results in frequencies. 3d, How can I decide this problem? (Be sure, I know the meaning of "not converged" ) 4th, Whom can I show the input file to?

does anyone here know, what the chemical(s) or reaction that takes place, when prawns or lobsters etc... change colour from often blue grey to a redish pink when they`re heated? it`s an irreversible reaction to my knowledge unlike most inorganic chems that often go back to their original colour on cooling. this one`s been bugging me for some time now