Answer:
this should help *not a virus
Explanation:
https://kidshealth.org/en/teens/digestive-system.html
There are 18. In each molecule of Fe(NO3)2 there are 6 oxygen atoms because you have 2 nitrate (NO3) components which each contain 3 oxygen atoms. 2 x 3 = 6. Because you have 3 molecules of Fe(NO3)2, you need to multiply 6 by 3, which gives you 18 oxygen atoms.
Answer:
hope it helps you a little
