Biology, 29.06.2019 17:10 davishernandez357
Astudent designs an experiment to test substances x, y, and z, to determine which one is a catalyst for the reaction: a + b ® c. only one of the unknown substances is a catalyst, and the others are nonreactive with a, b, or c.
when 10 ml of a is added to 10 ml of b, the reaction takes twenty seconds. bubbles form when the product c is created.
the student prepares three test tubes, each containing both reactants a and b. she adds unknowns x, y, and z to test tubes 1, 2, and 3, respectively. she then times the reaction in each test tube from the point when the unknown is added until bubbling stops.
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