The combustion of ethane (c2h6) produces carbon dioxide and steam:

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The combustion of ethane (C2H6) produces carbon dioxide and steam:
2C2H6(g) + 7O2(g) 4CO2(g) + 6H2O(l).
How many moles of CO2 are produced when 5.20 mol of ethane are burned in an excess of oxygen?