Magine you are in a laboratory. You are exploring the following reaction: A + B β C
When the product C is created, bubbles form. When 10mL of A is added to 10mL of B, the reaction takes twenty seconds. Your teacher gives you three unknown substances (X, Y, and Z), one of which is a catalyst for the reaction.
Design an experiment to test substances X, Y, and Z to determine which one is a catalyst for the reaction.
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In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .
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Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.
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Magine you are in a laboratory. You are exploring the following reaction: A + B β C
When the produc...
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