Question

I think it is the first one.

Answer 1

it is actually e

because even tho the old atoms turned into new atoms they had the same mass still

hope this helps!

Answer 2

No, it's B.

Step-by-step explanation:

It is a chemical reaction, but the reason for the lack of change in mass is not because atoms rearrange to form new substances. It's because atoms generally don't lose mass during a chemical reaction, because mass cannot be created or destroyed.