Question

How many total atoms are represented by the formula: 4H2SO4
A) 12
B) 16
C) 24
D) 28

Answer 1

16 atoms are represented by the formula: 4H2SO4

Answer 2

4H2SO4

List the elements
Count subscripts
multiply by coeficient

H  2 x 4 = 8
S  1 x 4 = 4
O  4 x 4 = 16

Add all the numbers together for your answer