How many moles of aluminum oxide can be obtained from 25.0 g of aluminum? 4 Al +302 - 2 Al2O3

A) 1.85 mol Al2O3
B) 0.46 mol Al2O3
C) 0.55 mol Al203
D) 1.55 mol Al2O3

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the correct answer is:

a. formation of precipitation

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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