Question

A chemist heats a material to 70 degrees Celsius, which is recorded as the base temperature. The temperature of the material increases further to 74 degrees Celsius, after which the chemist cools the temperature to 68 degrees Celsius. Which numbers can be used to represent the increase and decrease of the temperature of the material from the base temperature?

Answer 1

hello! your answer would be b: +4 degrees celsius and -2 degrees celsius because the starting temperature was 70 degrees, then heated up four degrees, and then cooled back down 6 degrees.

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