Which of the following determine an object's velocity?

For the following, determine the type of reaction and then give products.

Which rate indicates the number of children that would be born per woman if she were to live to the end of her child bearing years

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! )