Science homework on balancing our chemical equations:
Copper Oxidizes to form green patina
__ Cu + __O2 = __CuO2
Product ______________________
Reactants ________________ _____________________
Can someone explain what exactly I'm trying to find and how to come up with the answers? Google is useless to me. Thanks
Love is the battery of life....
Hi Casteel, ----------- I think you are wrong. The equation should be Cu + O2 = CuO (NOT CuO2.... cause Cu is +2, not +4). Now the balance is 2Cu+O2=2CuO (as you suggested it is straight 1Cu + 1O2 = 1CuO2). The products is CuO (Copper oxide) and the reactants are Cu (copper) and O2 (oxygen). The idea is to balance the numbers: there are 2 Cu, 2 O in each side. You reach it as follws: Start with Cu + O2 = CuO ----- on the left there are 2 O (written as O2) so you must change 1CuO to 2CuO.... now you have also 2 Cu at the right side and only 1 in the left side.... so you have to change from 1Cu to 2Cu.... now all is balanced. If you need more explanantions don't hesitate to return to me. ------------ Best regards,
2Cu + O2 = 2CuO
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