Select all of the correct statements about reaction quotients and equilibrium constants from the choices below.

A reaction quotient equals the equilibrium constant at equilibrium.

As a reaction progresses backward toward equilibrium Q drops.

If $Q=K$ the reaction is already at equilibrium.

The further away from $K$ the $Q$ value of a reaction mixture is the more unstable the mixture.

If $Q>K$ the reaction must progress backward to attain equilibrium.

As a reaction progresses forward toward equilibrium $K$ rises until it reaches $Q.$