Answer:
Every oxidation must be accompanied by a reduction.
Explanation:
Oxidation and reduction are complementary processes. There can be no oxidation without reduction and vice versa. It is actually a given an take affair. A specie looses electrons which must be gained by another specie to complete the process. This explains why the selected option is the correct one.
I'm pretty sure all 4 are subatomic particles but if i had to guess i'd be Photons
Your correct answer is (B) Ratio of neutrons to protons
Hope this helps! :)
