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August 2, 2015

Homework Help: Chemistry

Posted by Jessica on Thursday, September 10, 2009 at 11:42am.

I can not determine the answer for this problem...can someone please help me?

Determine the number if moles of MgO that form from the reaction of 4.4 moles of O2 in the following unbalanced reaction:
Mg + O2 ----> MgO

The balanced equation is:
2Mg + O2 -----> 2MgO

a. 1.1 moles
b. 4.4 moles
c. 17.6 moles
d. 2.2 moles
e. 8.8 moles

If I did this right I get 8.8 moles, is that correct or I am still doing this wrong? Please Help me!

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