Question

How would you balance Na2O plus HOH

Answer 1

Na2O + H2O -> 2NaOH

Answer 2

Put this down in your memory bank.
metal oxide + H2O ==> base.

Answer 3

Earth is 1.5 x 10ü km from the sun and Pluto averages 5.9 x 10 km from the sun during its rather strange orbit.

How many years does it take Pluto to revolve around the sun?