Reactants are on the left side of the arrow, while products are on the right
Answer:
atomic number
Explanation:
isotope is a family of an element with the same atomic number but different mass number.
Answer:
copy and paste this equation into the website
Explanation:
https://en.intl.chemicalaid.com/tools/equationbalancer.php
I would go with C because that seems like the best answer choice