Multiple Choice
The following chemical equation is not balanced.What must be done to the equation to make it balanced? Al (s) + CuO (s) → Al2O3 (s) + Cu (s)
A) Change the coefficients to: 2 for Al, 3 for CuO, and 3 for Cu.
B) Change the subscript of CuO to CuO3.
C) Add a molecule of AlO.
D) Change the state of matter in the reactants.
E) Change the subscripts of Al2O3 to be AlO.
Correct Answer:

Verified
Correct Answer:
Verified
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