chemistry study guide 2?
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I'm not directly giving you the answers, you have to know how to do this stuff, but I'll give you the process to get to each.\n\n9: Americium and Curium (wikipedia!)\n\n10: Potassium ion wants to be like the noble gas closest to it (the one right before it), so it loses 1e- to get there and be K+.  If that's not a choice, then look for another ion, positive or negative, that adds up to the electronic configuration of the aforementioned noble gas. (1s2 2s2 2p6 3s2 3p6), 18 total e-'s...\n\n11: Mg is in column 2, things in the same period tend to be chemically similar.  Find the other one in the choices that's in that column\n\n12: U235 and U238 are isotopes, same atomic number, different weight.  If you change the number of protons, you change the atomic number, so that wouldn't be U anymore.  Changing electrons can make ions, but not change weight.  So different number of neutrons for the same element makes an isotope.\n\n13: Same explanation as above, it'll also be Hydrogen's atomic number because it's an isotope.\n\n14: shell 2 contains the 2s and 2p subshells.  2s can hold 2 because it's an s orbital.  2p can hold 2 per p orbital, and a p subshell has 3 p orbitals, so 6.  Total would then be...\n\n15: If an atom loses electrons, it's LOSING -1 per electron lost, so it's becoming more positive.\n\n16: Which element in that list only has 1s shell? Which one has a  stable ion as just a proton or with a configuration like Helium (1s2)?\n\n17: Inert elements are on the far right of the periodic table.  They are inert because they have 8 valence (outer shell) electrons (or 2 in Helium's case) so they can't take anymore and are stable.  Look at your periodic table or count up electrons for each of those atomic numbers.  Only one of them will have 8 in the outer shell...
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When I took Chemistry, I found that flashcards usually helped with remembering names of compounds and acids.  As for the actual problem, it was just practice.  I would try to do as many of the problems that I could possibly do and would then call a friend for the problems I wasn't sure about.  \n\nFor me at least, reading the book didn't help too much, it explained it, but rereading wasn't exactly great, just look at the example problems, those are usually helpful as well.
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1.\nMn(s) + SnCl2(aq) --> MnCl2(aq) + Sn(s)\nCr(s) + 2HBr(aq) --> CrBr2(aq) + H2(g)\nCo(s) + CaBr2(aq) --> N.R\n2Al(s) + 3Ni(NO3)2(aq) --> 2Al(NO3)3(aq) + 3Ni(s)\n\n2.\nMg + 2AgNO3 --> Mg(NO3)2 + 2Ag\nmole of Ag = 3.580 / 108 = 0.033 mole\nmole of AgNO3 = 0.033 mole = 33 mmole\nmolarity of AgNO3 = 33 / 50 = 0.66 M\n\n3.\na.soluble\nb.soluble\nc.soluble\nd.insoluble\ne.soluble\nf.soluble\ng.insoluble in water, soluble in acid\nh.soluble\n\n4.\n3NaOH(aq) + Fe(ClO4)3(aq) --> Fe(OH)3(s) + 3NaClO4(aq)\n3Na+ + 3OH- + Fe3+ + 3ClO4- --> Fe(OH)3 + 3Na+ + 3ClO4-\nFe3+ + 3OH- --> Fe(OH)3\n(NH4)2SO4(aq) + Pb(NO3)2(aq) --> PbSO4(s) + 2NH4NO3(aq)\n2NH4+ + SO42- + Pb2+ + 2NO3- --> PbSO4 + 2NH4+ + 2NO3-\nPb2+ + SO42- --> PbSO4\n\nHope it helps\npeace\nvixklen
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I will recommend you to use spark notes. They are short, concise, and easy to understand difficult topics in a hurry.\n \nGo to Barnes & Nobles en get the CHEMISTRY SPARK CHARTS. It has a section with five easy to follow steps to do electronic configuration. I wish I could number them here, but the copyright law is severe. \n\nIn the meantime, here is an easy and short way to electronic configuration.\n\nI hope these links provide the help you are looking for. Good luck in your test :)
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http://www.chem1.com/acad/webtext/elchem/ec2.html#DESC\n\nhttp://www.chem1.com/acad/webtext/elchem/\n\nAnd many more by a google search
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Welcome to wonderful world of O-Chem.  For SN1 and SN2 reactions, using a reaction chart is very helpful.  Follow the link below and make a flash card out of it, and memorize the hell out of it.  I found it very helpful when I was taking O-Chem.  Good luck.
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get a good book\nlike the McGraw and Hill\nthats what we have in our Lab Chemistry class\nor go to the bonny eagle high school page and get the email for Helen Steele\nshe is a geneous i bet she could help you
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why dont you check out the XII th comprehensive chemistry practical reader??.........or anyother practical readers available in the market...............suggested ones are like soap formation........food adulteration.........fruit and vegetable juice analysis, toothpaste analysis.........caffeine.........aspirin......tanic acid found in tea leaves..........sea water .........all u have to do is buy that comprehensive  chemistry practical reader and choose from the given list............................\nbest of luck!!! :)
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C                    1s2 2s2 2p2\nSi                   1s2 2s2 2p6 3s2 3p2\nGe                   (Ar) 4s2 3d10 4p2\nSn                   (Kr) 5s2 4d10 5p2\nPb                   (Xe) 6s2 4f14 5d10 6p2\n\nConsult a good chemistry book.
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See if this site is of use to you, as you can see it covers a lot of subjects and might help you in the future.\n\nGood Luck.\n\n\nhttp://sparknotes.com/chemistry\n\nFree online study guides\n\nSparkNotes\n\nNo Fear Shakespeare\n\nTest Prep\n\nLiterature\nShakespeare\nPoetry\nHistory\nPsychology\nEconomics\nMath \nFilm\nDrama\nWriting\nPhilosophy\nChemistry\nBiology\nPhysics \n\nRomeo and Juliet\nHamlet\nMacbeth\nJulius Caesar\nThe Tempest\nMore...\n\nThis should help, navigate around until you find what you need.\n\nGood luck and chill.\n\nKevin, Liverpool, UK
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yup.  Email me with any other chem questions at\nfortitudinousskeptic@yahoo.com\nI teach chemistry.
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Ca(OCl)2 as far as i rem being taught in chemistry....U should have paid attention in ur class.....
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You might want to try to re-read the questions.  You don't appear to be understanding what is written there.  (I call it a brain fart, but three out of 28 indicates a little lack of understanding)\n\nIf you have re-read the problems, then I offer the below:\n\nYou might want to go over your notes about what a mole is.  It is an amount and a number.  It is a fundamental conceptual building block for the study of chemistry.\n\n  It looks like you expect to be able to plug and chug on these.  Which you can, once you start thinking in terms of atoms and molecules.  Plugging and chugging BEFORE you understand what these little pieces are doing is a recipe for a C.\nIt IS the ATOMIC theory of matter, don't you know.\n\nSo, once you've absorbed that, re-read these three problems.\n\nStill no joy?  Read on, Gunga DIn\n\nFirst H(g) is NOT the element's standard state! I thought everybody learned in grade school about H2 gas - the simplest molecule?  Iodine, I leave to you  (hint a gas???!!! not)\n\nSecond lets see you're making umpteen moles of something and calculate the dS.  that was not the question.  (hint: something about ONE mole)\n\nThird read the problem. your chemical equation is from I don't know where but not from what is in the problem. (hint: products on the LEFT???)
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www.google.com\nsearch " Chemisty Help "\n\nwow we got a smart person here.
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http://chemfinder.cambridgesoft.com/
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dir.yahoo.com/Science/Chemistry/Education
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I"m chem e, but same princples, i get A's , B's.   \n\nI'd hit the topics you thought were the toughest first.  Look over your homework and solutions to make sure you understand what you are doing.  Try to do additional problems and give teh notes/book a good look.  Then go over the stuff you know pretty well, starting with teh oldest material first.  Same thing, if something escaped your mind, do an example problem, or try to redo anyhomework without looking at the work you've already done.  \n\nFinally go over that toughest material again.  I'd say aim to quit studying 4 days before the exam.  Give yourself a day off, if you have practice exams, try to do those and then again go over the stuff you missed.  Go over the heading of your notes / book to see if you know what is going to be said.  Then just relax again until exam time.  \n\nThis is my study startegy that may help you out next time around.  \n\nI try to hit every class - hearing waht the teacher says, seeing what he wrote, and then writing it down (not word for word), but just his notes.  Even if the teacher gives you notes or posts them online, i still write them down.  \n\nWhen it comes to homework, i do it all alone.  It takes me twice as long as the average person, but it again gets the info in my head.  If i absolutely can't figure it out, i usually ask a friend, but just for enough info to get me onto the next part.  \n\nWhen it come time for the exam, i'm already pretty well prepared and don't bother studying.  I give my notes a once over and thats it.  \n\nI'm not sure how it is for your major, but our tests are generally all open book / notes.   So this way i sorta know where my reference info is.