In each of the following pairs of reactions, circle the reaction that will occur at the fastest rate. You may assume that equal amounts of starting materials were used in each pair of reactions and that other reaction conditions are the same unless indicated. In addition, explain why the reaction you circled gives the faster rate. Be sure to state the mechanism in your explanation.

Consider this initial-rate data at a certain temperature for the reaction described by

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.

To separate a mixture of hard candies nd marbles the most efficient method would be