Question

The equation shows the reaction of metals oxide with acid metal oxide+ acid ....>X +Water what is x? (1 point)

Answer 1

The given equation, x is a salt.

The equation shows the reaction of metal oxide with acid.

i.e., metal oxide + acid ⇒ x + water.

We have to identify x given in the equation.

Concept :

• The oxide of a metal generally works as a base. for example, Na₂O , K₂O, Li₂O, CuO etc. are basic in nature.
• Al₂O₃ is metal oxide but It is amphoteric in nature because it is worked as acid as well as base.
• The reaction with acid and base results a salt and water. for example, Na₂O(metal oxide) + 2HCl (acid) ⇒ 2NaCl (salt) + H₂O (water)
• Hence, metal oxide + acid = salt + water

Therefore x is nothing but a salt.

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