Chemistry Naming Ionic Compounds Solution: What are the formulas of tetraphosphorous heptasul...

Solution: What are the formulas of tetraphosphorous heptasulfide and copper(II) sulfate pentahydrate? A. K4S7 and CuSO4 . 7 H2O B. K4S5 and CuSO4 . 7 H2O C. P4S7 and CuSO4 . 5 H2O D. P4S5 and CuSO4 . 5 H2O E. none of these