I think it got deleted but the answer is Ammonium acetate maybe this is why it got deleted 10-9=1
Its about 11.5hg because if you divide it with the atom it would result to 11.5hg
Answer:The mass numbr is 22
Explanation:
Mass number=number of protons+ number of neutrons....which is 10+12=22
Oil, we are using it too fast for it to regenerate.