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insens350 [35]
3 years ago
12

Read the scenario. During a dangerous experiment, a scientist filled a box with hydrogen and oxygen in the form of gas. Then the

scientist lit a match and put it in the box. Which choice best explains how the reaction changed ?
a. it sped up
b. it spread out
c. it became more concentrated​
Chemistry
1 answer:
KatRina [158]3 years ago
3 0
C is the correct answer
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A student calculates that the volume of his textbook is 991.880 cm3. what is the volume written with 3 significant figures?
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The volume of the textbook calculated by the student written to 3 significant figures is 992cm³

  • According to this question, a student calculates the volume of his textbook and arrived at an answer of 991.880 cm³.

  • To round up this digit to 3 significant figures, which means that only 3 significant numbers should appear in the answer.

  • To do this, the number after the third number is 8, which means we can round up the value of 1 to 2. Hence, the volume of the textbook calculated by the student is 992cm³ in 3 s.f.

Learn more at: brainly.com/question/16563962?referrer=searchResults

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