Will give 40 points and brainiest

examine the following reactions.

reaction 1
pcl3(g) + cl2(g) → pcl5(g)

reaction 2
pcl5(g) → pcl3(g) + cl2(g)

which options correctly explain the relationship between the two reactions?

select all that apply.

both reactions contain entirely gaseous substances, making them both decomposition reactions.
both reactions contain all the same substances, making them both synthesis reactions.
reaction 1 is the opposite of reaction 2.
the reactant in reaction 2 breaks apart, making it a decomposition reaction.
the reactants in reaction 1 combine instead of breaking apart, making it a synthesis reaction.
reaction 1 is the same as reaction 2.