I need to find a good, free chemical equation balancer.?
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Paper and pen aren't totally free, but they can be used to quickly balance equations.
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Cl2 + 2KI --> 2KCl + I2\n\nsingle replacement
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http://www.scienceaid.co.uk/titration.html
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check out www.quickmath.com\n\nAlmost everything is there.
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Chemistry rocks!  Try these sites...
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www.google.com\nsearch " Chemisty Help "\n\nwow we got a smart person here.
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http://www.bymath.com\n\nand this is my weblog it is new but it will been good in future http://bymath.blogfa.conm\nDont forget comment!!!
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Calorimeter Info center\n\nhttp://www.scipeeps.com/Sci-Chemistry_Topics_C_-_Cl/Calorimeter.html
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http://chemfinder.cambridgesoft.com is the best place I know of and you can sign up free, you can search by Chemical Name, CAS Number, Molecular Formula or Weight of almost any chemical you can think of.
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google search chemistry tutorials . there are thousands of sites\nchemtutor.com\nhighschoolace.com\nchemistrycoach.com\nechemistryhelp.com\nare just some of the few that i use.\nthey're really helpful!
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go to\nwww.chemistry.com
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STN, owned by Chemical Abstracts Society, has dozens of databases for this purpose.\nhttp://www.cas.org/stn.html\nAlso, look at the Diaglog service, by Questel.Orbit.
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I recommend ZoneAlarm Basic, Free for personal use:\n\nhttp://www.zonelabs.com/store/content/company/products/znalm/freeDownload2.jsp?dc=12bms&ctry=&lang=en_us
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I use one called ClamWin. But there are a ton of choices, go to this URL:\n\nhttp://www.econsultant.com/i-want-freeware-utilities/index.html
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Chemfinder.com  \nYou have to register with the site to use it but it's completely free, and about as easy as them come. You can just copy and paste the structure you need.
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When you want to balance ANY chemical equation, always follow these steps:\n\n1. Balance metals\n2. Balance non-metals\n3. Balance hydrogen\n4. Balance oxygen\n\nLet's do it\n\nFirst let's balance K (metal):\n\n"2" KHCO3 + __H3PO4 yields __K2HPO4 + __H2O + __CO2\n\ndone. now let's balance P (non metal): if you check, it is balanced already.\n\nnow C (also non metal):\n\n2 KHCO3 + __H3PO4 yields __K2HPO4 + __H2O + "2" CO2\n\nnow hydrogen:\n\n2 KHCO3 + __H3PO4 yields __K2HPO4 + "2" H2O + 2 CO2\n\nfinally, oxygen (its already balanced!!)\n\nSo you end with\n\n2 KHCO3 + H3PO4 yields K2HPO4 + 2 H2O + 2 CO2
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What do you want a step by step set of instructions or a balanced equation?\n\n2C6H5OH + NaOCL = 2C6H50 + NaCl + H2O