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Soot is mainly composed of carbon. The black particles is ALL carbon because of the incomplete combustion of the hydrocarbons. Therefore, your answer is B, black carbon.
<h2><em>D. Determine valu</em></h2><h2><em>I took the test (I got a A btw)</em></h2>
Answer:
more molecules reaching the activation energy, which increases the rate of the reactions. Since the molecules are also moving faster, collisions between enzymes and substrates also increase.
Explanation: