bike_dummie Posted February 19, 2011 Report Share Posted February 19, 2011 hi, i dont understand how to do the equations where you need to balance something out i am in year9 so nothing too drastic but technically it year 10 work as we do it a year early.i cant give any examples as i dont really know how?sorry for another one of these school related questions but im desperate as i have 30% of my GCSE's in under 2 weeks and i cant ask my teachers as its half term so if someone could explain to me how to do that would be great thanks Adam . Quote Link to comment Share on other sites More sharing options...
AndrewEH1 Posted February 19, 2011 Report Share Posted February 19, 2011 Is this the sort of thing your are talking about? http://richardbowles.tripod.com/chemistry/balance.htm Quote Link to comment Share on other sites More sharing options...
dann2707 Posted February 19, 2011 Report Share Posted February 19, 2011 I had to do this in my module last semester for Materials Science. It's fairly easy, just simple multiplication. Start with the very left element and count how many there are on the left side, the big 2 or 3 or 4 etc tells you how many it's getting multiplied by, the small number (if there is one) next to the element on the right tells you how many of that element there are. For example 3 means there are 3 x 2 H molecules and 3 x 1 oxygen molecules. Now you have to balance this on the other side of the equation. Do you understand so far? Quote Link to comment Share on other sites More sharing options...
bike_dummie Posted February 19, 2011 Author Report Share Posted February 19, 2011 thanks get it now! seems so simple now Quote Link to comment Share on other sites More sharing options...
Tomm Posted February 21, 2011 Report Share Posted February 21, 2011 3 means there are 3 x 2 H molecules and 3 x 1 oxygen molecules. Atoms. Or ions I suppose. Quote Link to comment Share on other sites More sharing options...
dann2707 Posted February 21, 2011 Report Share Posted February 21, 2011 Oh shit yeah. Was going too far into it :$ cheers Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.