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Question:

Formula for Aluminum Oxide 10 points?

Why is the formula for aluminum oxide Al^2 0^3. Why does Aluminum have a charge of 2 and Oxygen have a charge of 3???

Answer:

1 is D 3 is B 5 is C 8 is B 10 is A 15 is D Thats all i know off the top of my head. hope it helps
^2 or ^3 is not a charge, it's a subscript O is -2 and Al is +3 When you write the formula, then the charges are switched; therefore, O is -2 and Al is +3, so it is Al^2O^3.
Al has a charge of +3. 2 of them =+6. O has a charge of -2. 3 of them =-6.
Aluminum oxide would be: Al2O3 Aluminum has a charge of +3. Oxygen has a charge of -2. Aluminum oxide is an ionic compound, therefore their charges becomes subscripts. See how the aluminum has a charge of 3? The three slides diagonally down and becomes the subscript for oxygen. Oxygen has a charge of 2 so it slides diagonally and becomes the subscript for aluminum. Hence, aluminum oxide is Al2O3. I hope this helps. I know it's probably a bad explanation, but it's the best I can do.

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