Question

when will equilibrium stop?

Answer 1

When the reactants combine to form some products and the proucts decompose (react) to reform products (both at the same rate). This is referred to as a dynamic equilibrium.
NOTE: It is generally considered that the forward and reverse reactions both continue, BUT at the same rate, so that "net reaction" stops, but the microreactions do not stop.

Answer 2

Ok choice B. Says never so its NEVER ?@AbbOtt

Answer 3

@abbOtt

Answer 4

True.

Answer 5

Equilibrium will stop if you disturb the chemical system either by:
- changing its temperature
- changing its pressure
- adding some reactant/product/new substance (eg dilution)