The answer would be absorbed
b. a chemical that cannot be broken down or separated into other chemicals
I choose the letter c witch is density I believe that it’s useful for determining identifying relationships between substances
When something is flammable, it burns and burning is a chemical property since the compounds are being broken down and gas is released. If something is non-falammable, it would then be a chemical property as well since the chemical makeup would not be broken by a flame. (I apologize if my answer is a bit broad or unspecific)
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