How do i know if an equation is fission or fusion?

Consider the equilibrium system: 2icl(s) ⇄ i2(s) + cl2(g) which of the following changes will increase the total amount of of cl2 that can be produced? all of the listed answers are correct decreasing the volume of the container removing the cl2 as it is formed adding more icl(s) removing some of the i2(s)

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Which sample at stp has the same number of atoms as 18 liters of ne at stp