Final answer:
An acidic oxide reacts with water to produce an acidic solution or is soluble in aqueous base. Examples include vanadium(V) oxide, chromium(VI) oxide, and manganese(VII) oxide. A basic oxide reacts with water to form a basic solution or dissolves readily in aqueous acid. An example is sodium oxide.
Step-by-step explanation:
An acidic oxide is an oxide that reacts with water to produce an acidic solution or is soluble in aqueous base. Examples of acidic oxides include vanadium(V) oxide (VO5), chromium(VI) oxide (CrO3), and manganese(VII) oxide (MnO4-).
A basic oxide, also known as a basic anhydride, is an oxide that reacts with water to form a basic solution or dissolves readily in aqueous acid. An example of a basic oxide is sodium oxide (Na2O), which forms sodium hydroxide (NaOH) when exposed to water.
Acidic oxides, such as chromium(VI) oxide, react with water to form an acidic solution or dissolve in base, while basic oxides, like cobalt(II) oxide, interact with acids to form water and a salt.
Acidic Oxides and Basic Oxides
Oxides that react with water to form an acidic solution, or that dissolve in base, are known as acidic oxides. In contrast, basic oxides are those that can either react with water to form a base or that dissolve in acids. An example of a basic oxide is cobalt(II) oxide, which reacts with nitric acid to form cobalt(II) nitrate and water:
CoO(s) + 2HNO3(aq) → Co(NO3)2(aq) + H2O(l)
An example of an acidic oxide is chromium(VI) oxide, which reacts with sodium hydroxide to form sodium chromate and water:
CrO3(s) + 2Na+(aq) + 2OH−(aq) → 2Na+(aq) + CrO42−(aq) + H2O(l)
Chromium(VI) oxide, when reacting with water, can form the acid H2CrO4, demonstrating its acidic character.