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Which of the following is the correct expression for the rate of appearance of one of...

Which of the following is the correct expression for the rate of appearance of one of the products in the following reaction? 3A + 6B → 5C + 2D

What is the change in entropy for the fusion of 2.5 mol of mercury at 234 K?

(ΔHfus (Hg) = 23 kJ /mol)

If the half-life of a reaction is independent of concentration, what is the order of the reaction?

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