Question

Name the compound Al2O3.

A) Aluminum oxide
B) Aluminum (II) oxide
C) Dialuminum trioxide
D) Aluminum trioxide
E) Aluminum (I) oxide

Answer 1

A

Step-by-step explanation:

Aluminum has only one oxidation state, +3, so no need to specify its oxidation state (III) in its name. Also, ionic compound--between metals and non-metals--do not need a mono, di, or tri added to the beginning of each element's name.