A student heats up solid X. it starts to melt at 35°c, and finishes melting at 40°C. what does this tell you about solid X. a. solid X is a pure compound
b. solid X is a pure element
c. solid X is an impure substance
d. solid X is an impure compound​

b. is the answer hoped i        

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

the correct answer to this question is 2