Hey Guys ! could u please define this term of me ?

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Reducing power is the strength of a chemical's ability to reduce another substance. It's the ability to gain electrons. Oxidizing power is the strength of a chemical's ability to oxidize another substance. It's how easily the chemical donates/loses electrons.

i have a feeling this is a gay person trolling to make straights look bad.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)