Question

An element x burns in air to form an oxide. This oxide reacts with sodium hydroxide to form a salt. A) what kind of oxide is form by element X. B) What does this tell you about element X. C) how can you show that the oxide formed is basic or acidic

Answer 1

since sodium hydroxide is base and acid and base reacts with each other to form salt and water.now base is given so another one which is oxide of x is acid.

this tells us that element is a non metal.

by using indicators.