the heating curve of an ice - water mixture that is slowly heated to 125°c contains three sloped and two…

the heating curve of an ice - water mixture that is slowly heated to 125°c contains three sloped and two level portions. what do the two level portions in the graph represent?\na heating\nb deposition\nc sublimation\nd phase changes
Answer
Brief Explanations:
During phase - changes (melting and boiling), the temperature remains constant while heat is being absorbed. The flat portions of a heating curve represent these phase - changes. Melting occurs when ice turns to water at 0°C and boiling occurs when water turns to steam at 100°C.
Answer:
D. phase changes