An element X on reaction with O2 forms X2O


#1

An element X on reaction with O2 forms X2O. This oxide dissolves in water and turns blue litmus paper red. Predict the nature of the oxide. Is the element X metal or non-metal?


#2

The oxide is acidic in nature as it has turned blue litmus paper red. Hence, Xis a non-metal.


#3

Can you please give some examples providing balanced chemical equations.