For a reversible chemical process to reach equilibrium, a - the rate of the forward reaction must be equal to the rate of the reverse reaction, b - the mass of the reactants music be equal to the mass of the products, c - the activation energy of the forward reaction must be equal to the activation energy of the reverse reaction, d - the concentration of the reactants must be equal to the concentration of the products. is d the correct answer?

No, A is the correct answer.

Explanation:

The rate must be the same or else it will not be at equilibrium because the concentration would shift away from equilibrium. Concentration does not always have to be the same as most particles have different masses and activation energies and such. (Double check my reasoning but I know this answer is correct)

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.