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cortneykeeler
21.10.2020 •
Chemistry
Question The melting point of paradichlorobenzene is 53.0°C. In a laboratory activity, two students try to verify this value. The first student records 51.5°C, 53.5°C, 55.0°C, 52.3°C, and 54.2°C. The second student records 52.3°C, 53.2°C, 54.0°C, 52.5°C, and 53.5°C.
a. Calculate the average value for the two students.
b. Calculate the percent error for each student.
c. Which student is most precise? Most accurate? Explain.
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Ответ:
C. to protect themselves
D.
Explanation:When an animal closely resembles the color of its surroundings, it is known as protective coloring. The color of the animal helps the animal blend in with the environment and makes it harder for predators to see it. This protects the animal from predators.