How many moles are in 7.12 x 10^24 molecules of potassium permanganate

Adepositional also feature that forms where a stream enters a lake or an ocean is a

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.

Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4: