2. Which one of the following statements are true of the sample of matter described by Figure
1?
a. As heat is added to the sample, its temperature always increases.
b. The sample is melting between a temperature of about - 100°C and - 10°C.
c. The liquid state would be observed in the sample at both 200 seconds and 400 seconds.
d. The solid state would be observed in the sample at both 600 seconds and 800 seconds.
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