Answer:
Melting points are often used to charactrize organic and inrganic crystalline compounds and to ascertain their purity. Pure substances melt at a sharp, highly-defined temperature (very small temperature range of 0.5 – 1 °C) whereas impure, cntminted sbstnces gnerally exhilbit a lrge mlting intrval.
Frzing of wter to frm ice in an ice cube tray. Frmtion of snw. Cngealng of bcon grease as it cools. Solidfication of mlted cndle wx
