Consider the reaction: A -----------> 2C The concentration of reactant A and product B were monitored at the same time interval. Time t, Minutes Molar Concentration A, [A] Molar Concentration C, [C] 0 2.40  0.00  2.00 2.20 0.40 4.00 2.00 0.80 The rate expression for the reaction, A ---------> 2C RATE = X Δ[A]/Δt = YΔ[C]/Δt. What is the correct value for X? A. 1 B. -2 C. -1 D. 1/2

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