Determine How many moles of Fe3O4 could be formed if 9.00 mol iron react with 12.00 mol Oxygen?
Determine How many grams of methane is required to form 45.5g CHcl3?
Predict the first excited state if The electron configuration for the ground state of Cr is 1s^22s^22p^63s^23p^63d^54s^1. . and explain your reasoning