For the following UNBALANCED exothermic reaction, match the shift to the causal agent:

HCl(g) + O2(g) Cl2(g) + H2O(g)

For the following UNBALANCED exothermic reaction, match the shift to the causal agent: HCl(g) + O2(g) + Cl2(g) + H2O(g) Increase in pressure [Choose ] Increase in Temperature [Choose ] Addition of a Catalyst [Choose ] [Choose ]