Asked by nuzhat
When magnesium metal (Mg) is burned, it forms MgO. How many moles of oxygen gas (O2) are needed to burn 20 moles of Mg? The balanced equation is:
2Mg + O2 --> 2MgO
2Mg + O2 --> 2MgO
Answers
Answered by
DrBob222
First let me caution you that when Mg is BURNED IN OXYGEN the product is MgO. Burn it in N2) and the product will be Mg3N2.
2Mg + O2 --> 2MgO
If you have 20 mols Mg, you will need 20 mols Mg x (1 mol O2/2 mols Mg) = 20*1/2 = 10 mols O2.
2Mg + O2 --> 2MgO
If you have 20 mols Mg, you will need 20 mols Mg x (1 mol O2/2 mols Mg) = 20*1/2 = 10 mols O2.
Answered by
Yohana Getahun
When is the produced when mg is burned by oxtgen???
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