[填空题]
The diagram below repmxm8*ouada- so 5wi0/u mj1(jresents ta;fh 3-aee 4exhe heating of ice starting at $-20^{\circ}C$.
1.Complete the table.
In the graph 1 to 5,What phase(s) is/are present?What is happening at the particle level?What phase change, if any, is taking place?
2.Give the melting point of the substance.
3.Identify the state of particles at $110^{\circ}C$.