Your cat weighs 4.5 kg. He is sitting on top of the refrigerator ready to pounce. His potential energy is 8.1 joules. How tall is the fridge (in meters)?

Sorry i dont understand the question can you rephase it?

Answer is: hydrogen is being oxidized.chemical reaction: co₂ + h₂ → co + h₂o.oxidation half reaction: h₂ → 2h⁺ + 2e⁻.reduction half reaction: c⁺⁴ + 2e⁻ → c⁺².oxidation is increase of oxidation number, hydrogen change oxidation number from neutral charge (in molecule of hydrogen) to oxidation number +1 (in water).

The name for subatomic particles in an atom is called a proton

You can just look up the questions individually and get the answers