The conditions at which the solid, liquid, and gaseous phases of a substance can exist in equilibrium with one another is called
a. boiling point.
b. freezing point.
c. sublimation point.
d. triple point

Respuesta :

triple point. 
Boiling point is when the object goes from liquid to gas
Freezing- substance goes from liquid to solid
Sublimation- solid to gas, skipping liquid