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15 September, 19:06

Mrs. Harrison mixes some chemicals together in a glass beaker in front of her science class. She asks her students to watch for a chemical reaction when she holds it over a Bunsen burner. She sets the flame on "low" and holds the beaker a few inches above the heat. After about 30 seconds, the mixture begins to fizz.

What could Mrs. Harrison do to make the chemical change occur faster?

A) add twice as much of a chemical in the mixture

B) increase the flame setting to produce more heat

C) use a smaller beaker with the same amount of chemicals

D) add cold water to the mixture to reduce its temperature

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Answers (1)
  1. 15 September, 20:02
    0
    The correct answer B. increase the flame setting to produce more heat
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