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Answer:
Aluminum oxide has a chemical formula Al2O3. It is amphoteric in nature, and is used in various chemical, industrial and commercial applications. It is considered an indirect additive used in food contact substances by the FDA.
Type of Chemical Reaction: For this reaction we have a combination reaction. Balancing Strategies: In this combination reaction we have the lithium coming together with the oxygen gas to form within oxide.
For the Al, CuO system the stoichiometric reaction is 2Al + 3CuO → Al2O3 +3Cu.
Here, there are two reactants (Al and O2) combining to form one product, Al2O3, so this is a synthesis reaction.
Since aluminum oxide is an ionic compound, that means that the charges on each element will be used to determine the formula of the compound. Aluminum is in column 13 or group 3A on the periodic table, so the aluminum ion has a +3 charge.