Section B Summary: 13-18 p. 50-51

14.

a.    i, ii, iv, vi

b.    iii, v

15. It tells us what types of atoms are in a compound and how many atoms of each.

16.

a.    3 hydrogen atoms, 1 phosphorous atom, and 4 oxygen atoms.

b.    1 sodium atom, 1 oxygen atom, and 1 hydrogen atom.

c.    1 sulfur atom and 2 oxygen atoms.

17.

               c.

·      A hydrogen gas molecule reacts with a chlorine gas molecule to produce two hydrogen chloride molecules.

·      Two aqueous hydrogen peroxide molecules produces two liquid water molecules and an oxygen gas molecules.

18.

a.    NaHCO3 + HCl à NaCl + H2O + CO2

b.    C6H12O6 + 6O2 à 6CO2 + 6H2O