A student 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. How can the student identify the catalyst? The test tube that stops bubbling first contains the catalyst. The test tube that produces the most bubbles contains the catalyst. The test tube that bubbles the longest contains the catalyst. The test tube that does not bubble contains the catalyst.
The test tube that first stops in bubbling or the production of a gas is the tube that contains the catalyst since the reaction ended faster than the others. A catalyst is known to speed up a reaction so it must the situation aforementioned is the answer.
A tolerance range is an environment where something can survive in. But if their is to much of one factor or to little this can effect the tolerance range.
It affects it by the warm waters in the gulf stream. Making the temperature up near Great Britain and Ireland Portugal etc. Much more mild then it would be per say in Eastern Canada. It's mainly affected by the Gulf Stream having it's waters flow upwards towards the countries listed.
Given the options here, B best describes the amplitude of a wave. Amplitude of a wave runs from the peak or crest (highest value of a wave) to the trough (the lowest value of a wave). It basically a value from the maximum to minimum height of a wave.