Question

9 what happens on the particle level when a substance melts? a a super organized structure is created b the particles move from very close together to farther apart c the particles move from really far apart to really close together d the particles fly around in the air

Explanation:

In a solid, particles are closely - packed. When a substance melts (changes from solid to liquid), the particles gain enough energy to move more freely and move from being very close together to farther apart.

Answer:

B. The particles move from very close together to farther apart