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____Al+____O2 → ____Al2O3

Which of the following sets of coefficients would correctly balance the equation and why?



A. 2, 2, 2; because you must use the same coefficient for each substance.

B. 2, 3, 2; because you must have the same number of atoms on each side of the equation.

C. 4, 3, 2; because you must have the same number of compounds on each side of the equation.

D. 4, 3, 2; because you may have the same number of atoms on each side of the equation

User KF Lin
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1 Answer

4 votes

Answer:

D

Step-by-step explanation:

You balance an equation so that all the elements have the same number of atoms on each side of the equation.

User Gaylord
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