Why series fatty acid carbons seen in double from?

Which statement is best described as a atom

What reaction is taking place? 02 + c3h8 = h20 + co2

An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.