Question

Which of these weighs the most?

Answer 1

➡️1)32g of O2

➡️2)2g of N2

➡️3)0.5 mole of Fe=0.5×55.8~27.9g

➡️4)3.01×10²³atoms=0.5mole of C=0.5×12=6g

So option A

Answer 2

option A is correct brotger