To get the number of atoms in a formula, add the total subscripts?

Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )

What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.

The time that is taken by neptune once around the sun is called