Regents Prep: Chemistry Multiple-Choice Questions

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Question 21 of 37   Physical Behavior of Matter

This question may require the use of the Chemistry Reference Tables or the Periodic Table of Elements. The heat of fusion of a compound is 30 joules per gram. What is the total number of joules of heat that must be absorbed by a 15.0 gram sample to change the compound from a solid to a liquid at its melting point?  1.  15 cal  2.  45 cal  3.  150 cal  4.  450 cal Need Some Help with This Question? Click Here for More Information.

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