Answer:Ca C2h3o2 2
Explanation
find the molar mass of the compound
ca : 1 X 40.1 = 40.1
c: 4 x 12.01 = 48.04
H: 6 X 1.01 = 6.06
O: 4 X 16 = 64
add these up and get 158.11
then divide 158.11 by each element massand multiply by 100
Ca: 40.01/158.11 X 100 = 25.3%
C: 30.4%
H:3.8%
O: 40.5%
