Propenoic acid is an unsaturated carboxylic acid. Describe how you could show that it is an unsaturated compound giving details of the test and the result.

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with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

the answer is 1 i believe

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >