Odpowiedź:
Tlenek siarki VI
MS = 32u
MO = 16u
MS/MO = 32/3*16
MS/MO = 32/48 = 16/24 = 8/12 = 4/6 = 2/3 2:3
Fluorek wapnia
MCa = 40 u
MF = 19u
MCa/MF = 40/19*2 = 40/38 = 20/19 = 20:19
Siarczek magnezu
MS = 32u
MMg = 24 u
MS/MMg = 32/24 = 16/12 = 8/6 = 4/3