The drawing below shows a mixture of molecules:

$\backslash$table$[[$key$,],[$nitrogen$,$sulfur$],[$oxygen$,$chlorine$]]$

Suppose the following chemical reaction can take place in this mixture:

$2C_2{H}_2(g)+5O_2(g)4C{O}_2(g)+2H_{2}O(g)$

Of which reactant are there the most initial moles? Enter its chemical formula:

Of which reactant are there the least initial moles? Enter its chemical formula:

Which reactant is the limiting reactant? Enter its chemical formula: