Answer: Na2O+H2O=2NaOH Step by step exp. Given: Equation Na2O+H2O=NaOH To find: Balance the equation Solution: Taking LHS of the equation LHS=Na2O+H2O There is 2 sodium, 2 oxygen,& 2 hydrogen To balance the equation we have equal number of atom so we multply 2 to the RHS=2NaOH There fore the equation form is Na2O+H2O=2NaOH