Learn about new technologies!

What is the correct answer?


Which of the following weighs the least?

A. 1 g of CO2

B. 2 litres of CO2 at N.T.P.

C. 3.01×1011 molecules of CO2

D. 3.01×1022 atoms of carbon

Please do not use chat terms. Example: avoid using "grt" instead of "great".