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bixtya [17]
3 years ago
5

Rachel is using a Bunsen burner to heat a solution. Which of the following would let her control the rate of reaction in the sol

ution? A. replacing the amount of flammable gas used with different rates B. controlling the amount of air entering the combustion tube C. placing the burner in open surroundings
Biology
1 answer:
motikmotik3 years ago
5 0

Answer: b) controlling the amount of air entering the combustion tube

The rate of a reaction when using a Bunsen burner is changed by modifying the temperature of the flame.

In this type of burner, the temperature of the flame is modified by controlling the amount of air available for the flame. More air allowed will result in a hotter flame. This is achieved by turning the collar around the air holes.

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The correct option would be option A.

<u>When something grows exponentially, it means the growth increased at a high rate. More specifically, each rate of increase results in more or less doubling of the preceding rate. For example, if the current value of growth rate is 2 for a substance that is growing exponentially, the next growth rates will be 4, 8, 16, etc.</u>

<em>In this particular illustration, the only option that best fit into an exponential system is option A in which the growth rate more or less doubles each time from 50 to 88, from 88 to 145, and then from 145 to 227.</em>

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