Answer: Porous rock has gaps between rock particles that can fill with water. but i’m not 100% sure
Explanation:
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:
c is your answer there u go
Explanation:
