AP Chemistryeasymcq1 pt
For the reaction A → products, doubling [A] quadruples the rate. What is the order in A?
A.2
B.1
C.0
D.4
Rate ratio = (concentration ratio)^order: 4 = 2ⁿ gives n = 2. Second order means the rate scales with the square of concentration.
A2
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