Identify the molecularity of each elementary reaction in the table below.

$\backslash$table$[[$elementary reaction,molecularity,$],[2N_2{O}_5(g)2N_2{O}_4(g)+O_2(g),\backslash$table$[[$unimolecular$],[$bimolecular$],[$Cannot be determined.$]],\backslash$table$[[$termolecular$],[$quadrimolecular$]]],[CFC{l}_3(g)CFC{l}_2(g)+Cl(g),\backslash$table$[[$unimolecular$],[$bimolecular$],[$Cannot be determined.$]],\backslash$table$[[$termolecular$],[$quadrimolecular$]]],[H_2(g)+2I(g)2HI(g),\backslash$table$[[$unimolecular$],[$bimolecular$],[$Cannot be determined.$]],\backslash$table$[[$termolecular$],[$quadrimolecular$]]]]$