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Polyvinyl chloride (PVC) is one of the most commercially important polymers. PVC is made by addition polymerization of vinyl chloride (C2H3Cl). Vinyl chloride is synthesized from ethylene (C2H4) in a two-step process involving the following equilibria: Equilibrium 1: C2H4(g) + Cl2(g) ⇌ C2H4Cl2(g) Equilibrium 2: C2H4Cl2(g) ⇌ C2H3Cl(g) + HCl(g) What are the C-C bond orders in C2H4Cl2 and C2H3Cl, respectively? Express your answer numerically separated by commas.