Homework Help: Chemistry

Posted by Jane on Saturday, September 8, 2007 at 3:21pm.

I have to work out the percentage change in the proportion of carbon dioxide in the atmosphere between certain time periods represented on a graph.If someone could give me some hints on how to approach this I would be very grateful just not sure what to arrange calculation.

Chemistry - bobpursley, Saturday, September 8, 2007 at 4:56pm
I would start with calculating the percent composition of CO2 for the given times. Then, after those are done, you can look at the changes.
- Chemistry - Jane, Saturday, September 8, 2007 at 9:51pm
  Thanks

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