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Video instructions and help with filling out and completing How Form 2220 Compute

Instructions and Help about How Form 2220 Compute

In this video we're going to learn how to figure out the oxidation numbers for the different elements in a chemical compound the oxidation numbers are the numbers that I've written here above each one of the elements now if you want to learn more about what oxidation numbers are or why they're important check out my video called what are oxidation numbers in this video we're going to work through the process of how you figure out what these numbers are so here are the rules that we're going to use to figure out oxidation numbers now just so you know every teacher and textbook has their own version of these rules but they all work in pretty much the same way so if you learn mine you'll still get the answer right 100% of the time even if these are a little bit different from your teachers I'm going to talk through a few of these rules right now and then I'll introduce the rest just as we work through practice problems the first is this an element by itself always has an oxidation number of here's what I mean by that there are a lot of chemical compounds that have just one element that element is not combined with any other elements that's what I'm calling an element by itself so that's something like CL - it doesn't matter how many atoms of that element you have just as long as it's only that element and none others so CL - an element by itself oxidation number of sodium na by itself s 6 just sulfur nothing else P for phosphorous and nothing else zero so that's probably the easiest rule here it's always zero for the oxidation state if you have an element by itself with...