Answer:
Below
Step-by-step explanation:
From periodic table :
Mn = 54.938 and O =15.999 gm/mole
Take the percentages of each and divide by the gm/ mole of each:
Mn 72.02 / 54.938 = 1.31
O 27.98/15.999 = 1.74 divide these numbers by the smallest ( 1.31)
to get ratio: Mn = 1 O = .75 now get whole numbers (multiply by 4 )
Mn = 4 O = 3
Mn4 O3