**CHEMISTRY!! PLEASE HELP ASAP!!**
How many atoms of each element does calcium sulfate, CaSO4, contain?
Calcium = 1 atom, Sulfur = 4 atoms, Oxygen = 4 atoms
Calcium = 1 atom, Sulfur = 1 atom, Oxygen = 4 atoms
Calcium = 4 atoms, Sulfur = 4 atoms, Oxygen = 4 atoms
Calcium = 4 atoms, Sulfur = 1 atoms, Oxygen = 4 atoms