George is learning about chemical equilibrium in a closed system. He knows that the system reaches equilibrium when the rates of the forward and reverse reactions are equal. What happens to the concentration of reactants and products once equilibrium is reached?

Xia is studying Le Chatelier's principle. She learns that when a system at equilibrium is subjected to a change, it shifts to minimize the effect. Which of the following changes can disturb equilibrium?

Bongani is studying the effect of a catalyst on equilibrium. He learns that a catalyst speeds up both the forward and reverse reactions equally. What is the effect of a catalyst on the equilibrium position?

The law of mass action was proposed by:

According to Le Chatelier’s principle, if stress is applied:

Rania is studying the concept of chemical equilibrium. She learns that equilibrium can be disturbed by changing conditions. According to Le Chatelier's principle, what happens when a system at equilibrium is disturbed?

A reversible reaction is one that:

Paula is studying chemical equilibrium. She understands that equilibrium can be affected by changes in concentration, temperature, and pressure. What is the principle that predicts the direction of the shift?

Nadia is studying reversible reactions and dynamic equilibrium. She learns that a catalyst does not affect the position of equilibrium. Why is this?

Increase in temperature favors:

Equilibrium constant is a measure of:

Diana is studying the concept of reversible reactions. She learns that some reactions can be driven to completion by removing products. How does removing a product affect a reversible reaction?

Samir is learning about reversible reactions. He understands that in a reversible reaction, the reactants are never completely converted to products. Why is this?

Which type of reaction can establish equilibrium?

Which change will not disturb equilibrium?

David is studying the concept of chemical equilibrium. He learns that it is a dynamic process. What does 'dynamic' mean in the context of chemical equilibrium?

Hina is studying chemical equilibrium. She learns that the equilibrium constant (K) is temperature-dependent. What happens to K for an exothermic reaction when the temperature is decreased?

Which factor does NOT affect the position of equilibrium?

For the reaction N2 + 3H2 ⇌ 2NH3, the equilibrium expression is:

Carlos is learning about chemical equilibrium. He understands that the equilibrium constant (K) depends on temperature. If the temperature of an exothermic reaction is increased, what happens to the value of K?

At equilibrium, the concentration of reactants and products:

Which statement about equilibrium is correct?

If equilibrium constant equals 1, it means:

Khalid is learning about dynamic equilibrium. He knows that at equilibrium, the forward and reverse reactions continue to occur. What is the net change in concentrations of reactants and products at equilibrium?

Hina is studying reversible reactions. She learns that not all reactions are reversible. Which of the following is an example of a reaction that is reversible?

Mohamed is learning about Le Chatelier's principle. He knows that adding a reactant to a system at equilibrium will shift the equilibrium to the right. What is the effect on the concentration of products?

Chemical equilibrium is important in industry because it:

Aisha is learning about dynamic equilibrium. She understands that at equilibrium, the system is in a state of balance. Which of the following statements is true about dynamic equilibrium?

Which change shifts equilibrium to the right?

Chloe is learning about the conditions for equilibrium. She knows that equilibrium can only be reached in a closed system. Why is a closed system necessary for equilibrium?