What is the molarity of a solution in which 15 grams of Na(NO3)are dissolved in 300 mL of solution

The excretory system,need answers for all: )

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?