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| Balancing equations | |
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| Tweet Topic Started: Dec 31 2010, 04:34 AM (587 Views) | |
| Michelle | Dec 31 2010, 04:34 AM Post #1 |
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Can someone help me with this? |
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| CJ | Jan 5 2011, 05:25 PM Post #2 |
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A very minor case of serious brain damage
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OK, then. I'll go through a simple example: H2 + O2 --> H2O Before doing anything else, we count how many atoms of each type we have in total on each side, so let's do that: Left (reactants): 2 hydrogen, 2 oxygen Right (products): 2 hydrogen, 1 oxygen We need to get an extra oxygen atom on the right hand side, and the only way to do that is by doubling the number of water molecules: H2 + O2 --> 2H2O Now, once again, we count what we have on each side: Left (reactants): 2 hydrogen, 2 oxygen Right (products): 4 hydrogen, 2 oxygen Now, we have 2 oxygen atoms on both sides. However, we've now got 2 hydrogen atoms on the left, and 4 on the right. We can solve this by doubling the number of hydrogen molecules on the left hand side: 2H2 + O2 --> 2H2O Now, we count again: Left (reactants): 4 hydrogen, 2 oxygen Right (products): 4 hydrogen, 2 oxygen Now that they're equal, we're done! (Maybe I should do a video about this....) |
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| Michelle | Jan 5 2011, 05:30 PM Post #3 |
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That was kinda confusing but it at least answers my question. Thanks. |
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| CJ | Jan 5 2011, 05:40 PM Post #4 |
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A very minor case of serious brain damage
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You're welcome. Would it help if I made a video about this later? |
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| Michelle | Jan 5 2011, 05:44 PM Post #5 |
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Yeah, it would, I'd appreciate it. When people teach something, I prefer it if they were talking while demonstrating. Edited by Michelle, Jan 5 2011, 05:44 PM.
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| CJ | Jan 5 2011, 07:13 PM Post #6 |
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A very minor case of serious brain damage
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Me too. It's a bit difficult to do good demonstrations over the internet. |
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| Michelle | Jan 5 2011, 07:19 PM Post #7 |
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I know, it's so true. |
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| CJ | Jan 20 2011, 12:40 AM Post #8 |
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A very minor case of serious brain damage
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Finally made my video: |
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| childlimbs | Jan 20 2011, 01:28 AM Post #9 |
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♡ sad flower ♡
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lawlz that vid would've been quite helpful like. a month or two ago. haha. when we did this i thought it was quite easy. but one of my friends had a lot of trouble with it. haha idk i just find most chemistry easy. i'm saying that now...but the midterm is probs gonna killll meeeee you should also make more chem vids. just saying. that's probs really off topic but i just wanted to say that. haha. xD |
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| CJ | Jan 20 2011, 01:54 AM Post #10 |
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A very minor case of serious brain damage
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Thanks! Any specific requests? |
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| childlimbs | Jan 20 2011, 02:04 AM Post #11 |
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♡ sad flower ♡
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stoichiometry or however you spell it and limiting and excess reagents...or whatever. if you can do them. idk i found those topics to be one of the harder parts of chemistry. |
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| CJ | Jan 20 2011, 02:10 AM Post #12 |
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A very minor case of serious brain damage
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I can vaguely remember....I'd probably have to revise them before making a vid, though. |
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| Michelle | Jan 20 2011, 03:23 AM Post #13 |
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...I vaguely get it... *chemistry melts my brain and makes me look like a *censored*tard* Edited by Michelle, Jan 20 2011, 03:24 AM.
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| CJ | Jan 20 2011, 09:51 AM Post #14 |
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A very minor case of serious brain damage
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OK.... It doesn't really involve any chemistry, actually. There's not really much more to it than counting. |
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| Michelle | Jan 20 2011, 01:42 PM Post #15 |
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Oh okay then... |
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| Michelle | Dec 30 2012, 04:44 AM Post #16 |
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So yeah... no offence but you failed to mention that it's the valence electrons. No wonder I didn't get this ****. |
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8:35 AM Jul 11