Question

The chemical formula for carbonic acid is written below. What does the large 3 in

front of the formula represent? *
3(H2CO3)
O
3 atoms of hydrogen
3 molecules of carbonic acid
O
3 elements
O
3 atoms of carbonic acid

Answer 1

The answer is 3 molecules of carbonic acid

Step-by-step explanation:

hope this helped!

Answer 2

3 atoms of carbonic acid because it’s outside the bracket showing that it’s 3 whole atoms