1. if the concentration of substance A of a reversible reaction in dynamic equilibrium decreases, how will the equilibrium change?

A. It will shift towards the products.
B. It will not change.
C. It will shift to create less of substance A.
D. It will shift to create more of substance A.
2.
Equilibrium occurs in what type of reactions?

A. Irreversible
B. Catalytic
C. Combustion
D. Reversible

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