Posted by **Lance** on Sunday, April 15, 2012 at 8:34pm.

Based on the balanced equation

4Na + O2 → 2Na2O

calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2 molecules react?

Thanks.

- Reposting Chemistry College -
**bobpursley**, Sunday, April 15, 2012 at 10:38pm
You are limited to 20 O, and 30Na2, so the overall limit is 20 O in 2Na2O, so the total Na2O has to be 20 total max.

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