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Name:1.Write the reaction rate expressions for the following reactions in terms of the disappearance of the reactants and the appearance of products: (6 points)a.H2(g) + I2(g)→ 2HI(g)b.5Br–(aq) + BrO3–(aq) + 6H+(aq) → 3Br2(aq) + 3H2O(l)(Reference: Chang 13.5)The rate of disappearance of reactant has negative signThe rate of disappearance of reactant can be expressed as followed:A)Rate = -1Δ[H2]= - Δ[O2]= 1 Δ[H2O]2 Δt Δt 2 Δt2.Consider the reaction2NO(g) + O2(g) → 2NO2(g)Suppose that at a particular moment during the reaction nitric oxide (NO) is reacting at the rate of 0.066 M/s.a.At what rate is NO2 being formed? (3 points)b.At what rate is molecular oxygen reacting? (3 points)(Reference: Chang 13.7)3.The rate law for the reactionNH4+(aq) + NO2–(aq) → N2(g) + 2H2O(l)is given by rate = k[NH4+