& for the conclusion just restate the intro, PLEASE HELP

Ibelieve the answer is d

Use a magnet to separate iron, evaporate water, i'm not sure how to separate the other two i'm sorry but good luck

Idont know. if you want an answer you need to give us some context dude.

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).