Depending on what chemicals you use it slows the reaction
Answer: Food Chain
Explanation: In a food chain, energy is passed from one link to another. Many organisms cannot make their own food, so rely on eah other for nourishment.
A) Fe⁰ ----> Fe⁺³ +3e⁻ oxidation | *2
b) <u>Cu⁺² + 2e⁻ -----> Cu⁰ reduction |*3</u>
c) 2Fe⁰ +3Cu⁺² -----> 2Fe⁺³ + 2Cu⁰
D. F
Molecules are a group of bonded atoms but Fluorine stands on its own