no idea how to do these 3 types of problems, my notes seem practically useless
1. determine the empirical formula for a compund made from 26.6% potassium, 35.4% chromium, and 38% oxygen. show all steps and stuff
2. determine the net ionic equation for AgNO3(subscript)(aq) + ZnCl(aq) -------> AgCl + Zn(NO3(subscript))2(subscript)
you must show the ionic equation with spectator ions and all that
3. how many liters of chlorine gas are found in 7.4 x10^24 particles of diatomic chlorine?
please help me!!