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Question:

A certain ionic compound is made entirely of aluminum and oxygen.What is the formula for this compound?

A certain ionic compound is made entirely of aluminum and oxygenWhat is the formula for this compound?

Answer:

Aluminium Oxide: Al2O3 The ions: Al3+ .............. O2- When they bond: It is ionic as it takes place by the transfer of electrons from Aluminium(metal) to Oxygen(Non-metal). Hence, the bond is: Al2O3, Aluminium Oxide or alumina.
Aluminum Oxide Al2O3

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