Question

The mass of a carbon atom is 1.994 × 10-23 grams. The mass of a hydrogen atom is 1.67 × 10-24 grams. What is the difference of their masses?

Answer 1

the correct answer is

b. 1.827 × 10-23 grams

Explanation:

Answer 2

The answer is:
(1.994×10^-24 - 1.67×10^-23) = 1.827×10^-23