In general, when a substance changes from a solid to a liquid,

A.
the substance no longer has density since density is a property only solids have.
B.
the density of the substance decreases.
C.
the density of the substance remains the same.
D.
the density of the substance increases.

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 hours ago

When a substance changes from a solid to a liquid, the most accurate statement is:

B. the density of the substance decreases.

This is because most substances, when they melt, have a lower density in the liquid state compared to the solid state. Water is a notable exception, as it becomes less dense when it freezes, which is why ice floats on water. However, in general, many materials do experience a decrease in density upon melting.