Question

consider the following chemical reaction:
2ch₄(g) ⇌ c₂h₂(g) + 3h₂(g)
describe what is happening within the system
when it is at equilibrium in terms of concentrations,
reactions that occur, and reaction rates.
which of these did your answer include?
☐ the equilibrium in the system is a dynamic
equilibrium.
☐ at equilibrium, the rate of the forward reaction
(ch₄ decomposing into c₂h₂ and h₂) is
equal to the rate of the reverse reaction (c₂h₂
and h₂ reacting to form ch₄).
☐ at equilibrium, the concentrations of all
substances are not changing.
☐ at equilibrium, both the forward and reverse
reactions are still occurring.

Explanation:

Answer:

The equilibrium in the system is a dynamic equilibrium.
At equilibrium, the rate of the forward reaction ($CH_4$ decomposing into $C_2H_2$ and $H_2$) is equal to the rate of the reverse reaction ($C_2H_2$ and $H_2$ reacting to form $CH_4$).
At equilibrium, the concentrations of all substances are not changing.
At equilibrium, both the forward and reverse reactions are still occurring.