Question

Suppose an unknown substance has a melting temperature of 1,200 degrees Celsius and a density of 16.7 g/cm3. However, the different individual atoms that make up the element have very different melting temperatures and densities. Which is the unknown substance most likely?
A) solution
B) compound
C) molecule

Answer 1

B) compound.

A compound is usually made up of different Elements, a compound is likely to have a melting point as well.

Answer 2

Answer: Option (B) is the correct answer.

Explanation:

As it is given that the melting temperature of substance is 1200 degree Celsius and its density is 16.7 $g/cm^{3}$.

Since, the temperature is very high and no solution or molecule exists at such a high temperature.

Whereas a compound is defined as the substance which contains two or more different elements which chemically combine together in a fixed ratio by mass.

Compounds in the form of alloys have high melting temperature.

Thus, we can conclude that the given unknown substance is most likely a compound.