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A teacher has three pouches, each containing white granules. She asks a student to identify the pouch that contains table salt. The student takes a sample from each pouch and adds it to a separate glass of water. The granules in pouch 1 give out fumes, the granules in pouch 2 disappear, and the granules in pouch 3 settle at the bottom.
The student concludes that pouch
contains common salt because she knows that common salt
water.
Answers: 1
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Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming
Answers: 2
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The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
Answers: 1
Select the correct answer from each drop-down menu.
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