[填空题]
The diagram below represent5** -hxkr;aoo2 kkwa uwa99b yk3yw k,s the heating of iitt,hkz ,- /.ww14yb rtqe2xtce 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 $110^{\circ}C$.