For 2NO + O 2 → 2NO 2, initial rate data are:   [NO] 0.010 0.010 0 .030 M   [O2] 0.010 0.020 0 .020 M  rate 2.5 5.0 45 .0 mM/sec  The rate law is Rate =  k[NO] x[O 2] y:     x = 0, y = 2     x = 2, y = 2     x = 1, y = 1     x = 2, y = 1     x = 1, y = 2

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