Question

balance this equation Na2O + H2O = 2Naoh​

Answer 1

I hope it will help you.

Explanation:

In your case, Na2O and H2O forming a new product by balancing the equation: The O-Atom in Na2O is double negative charged and is attracted by one of the partial charges of the H-Atoms in H2O. It comes to two negative charged hydroxyl groups.

Na2O -> 2 Na(+) + O(-2)

O(-2) + H2O -> 2 OH(-)

Those hydroxyl groups reacting with the positive charged Na-ions and complete the equation:

2 Na(+) + 2 OH(-) -> 2 NaOH

So at the end you got: Na2O + H2O -> 2 NaOH