What are examples of basic oxides?

Examples of basic oxides include sodium oxide, magnesium oxide, calcium oxide, and barium oxide.

Basic oxides, also known as alkaline oxides, are oxides that react with acids to form a salt and water. They are formed by the reaction of a metal with oxygen. For instance, when sodium reacts with oxygen, it forms sodium oxide, which is a basic oxide. Similarly, when magnesium, calcium, or barium react with oxygen, they form magnesium oxide, calcium oxide, and barium oxide respectively.

Sodium oxide (Na2O) is a strong basic oxide. When it reacts with water, it forms sodium hydroxide (NaOH), which is a strong base. This reaction is exothermic, meaning it releases heat. The equation for this reaction is Na2O + H2O → 2NaOH.

Magnesium oxide (MgO) is another example of a basic oxide. It also reacts with water to form magnesium hydroxide (Mg(OH)2), although this reaction is not as vigorous as the reaction of sodium oxide with water. The equation for this reaction is MgO + H2O → Mg(OH)2.

Calcium oxide (CaO), also known as quicklime or burnt lime, is a basic oxide. When it reacts with water, it forms calcium hydroxide (Ca(OH)2), also known as slaked lime. This reaction is highly exothermic. The equation for this reaction is CaO + H2O → Ca(OH)2.

Barium oxide (BaO) is a basic oxide that reacts with water to form barium hydroxide (Ba(OH)2). The equation for this reaction is BaO + H2O → Ba(OH)2.

In summary, basic oxides are formed by the reaction of a metal with oxygen and they react with acids to form a salt and water. Sodium oxide, magnesium oxide, calcium oxide, and barium oxide are all examples of basic oxides.