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For a chemical reaction A + B  Product, the order is 1 with respect to A and B Rate mol L –1 S –1 [A] mol L –1 [B] mol L –1 0.10 20 0.5 0.40 x 0.5 0.80 40 y  What is the value of x and y?

1. 160 and 4
2. 80 and 4
3. 80 and 2
4. 40 and 4

Correct answer: 80 and 2

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