How do phase changes differ from chemical reactions?
A) There is no difference between them.
B) Phase changes occur more rapidly than chemical reactions.
C) Only chemical reactions involve changes in energy.
D) Only chemical reactions follow the conservation of matter.
E) Phase changes do not involve breaking or making covalent bonds.

Question

Quizplus · Accepted Answer

Phase changes involve changes in the state of matter (solid, liquid, gas) without altering the chemical composition of the substance, meaning no covalent bonds are broken or formed. Chemical reactions, on the other hand, involve the rearrangement of atoms to create new substances, which includes breaking and forming covalent bonds.

How Do Phase Changes Differ from Chemical Reactions