Question

consider the following intermediate chemical equations.
2p(s)+3cl₂(g)→2pcl₃(l)
pcl₃(l)+cl₂(g)→pcl₅(s)
when you combine the intermediate chemical equations, which substance do you cancel out?
p
cl₂
pcl₃
pcl₅

Explanation:

Step1: Analyze reactants and products

The first equation is \(2P(s)+3Cl_2(g)
ightarrow 2PCl_3(l)\) and the second is \(PCl_3(l)+Cl_2(g)
ightarrow PCl_5(s)\).

Step2: Identify intermediate

An intermediate is a species that is produced in one step of a reaction - mechanism and consumed in a subsequent step. In these two - step reactions, \(PCl_3\) is produced in the first reaction and consumed in the second reaction.

Answer:

\(PCl_3\)