I believe the answer is a because 2 times 12 is 24. Hope this helped
<span>Haemoglobin is a pure substance because it contains only one type of atom. </span>
if you really liked this person then it would be no discussion if you really do like this person then you want to wait
Answer:
i hope it will help you
Explanation:
there will be 7 electrons and 9 protons will have 2+ charge.