Question

Metal oxide + acid = ?????

Answer 1

Answer ⇒ They will form Acid and water.

Explanation ⇒ Whenever any Metal Oxide combines with the acid, they will form, salt and water.

Metal Oxide + Acid ----------⇒ Acid + Water.

This is because, Metal oxide are always basic in nature.

Some Reactions given below will support my answer to the vast extent.

1. Na₂O + 2HCl ---------⇒ 2NaCl +  H₂O

2. K₂O + 2HCl ---------⇒ 2KCl +  H₂O

3. MgO + 2HCl ---------⇒ NaCl₂ +  H₂O

4. Rb₂O + 2HCl ---------⇒ 2RbCl +  H₂O

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Hope it helps.

Answer 2

Carbon dioxide is given off during the reaction between copper(II) carbonate and hydrochloric acid. ... Metal oxides and metal hydroxides both react with acids to produce salts and water.