Chemistry (7th Edition)

The chemical formula for lactic acid is $C_3H_6O_3$
1. Count the number of times each element appears in the structure: C: 3 carbons. H: 6 hydrogens. O: 3 oxygen. 2. Write each symbol in alphabetical order, followed by the number of times it appears (If the number is equal to 1, you don't need to represent it): $C_3H_6O_3$