3 posts • Page 1 of 1
For this question, I believe the main concept they want you to understand is that nonmetal oxides tend to act as acids, whereas metal oxides tend to act as bases. The classification of oxides as acids or bases is more ambiguous when the other element is a metalloid, so As2O3 and Bi2O3 would be classified as amphoteric.
Another way to look at it is that acidic oxides are oxides that reacts with water to form a solution of a Bronsted acid. SO3 is an example of an acidic oxide because when it reacts with water, it forms H2SO4. SO3 + H20 --> H2SO4. Since H2SO4 is an acid, SO3 is an acidic oxide.
Who is online
Users browsing this forum: No registered users and 1 guest