Which process is a chemical change? burning a match boiling water melting ice breaking glass

The process, which is a chemical change is BURNING A MATCH.

In chemistry, there are two basic types of change, these are physical and chemical change. In physical change, no new material is formed and the process is reversible while in chemical change new materials are formed and the process is irreversible. In the question given above, the burning of match will result in a new product, that is, ash and the process is irreversible.

the correct answer is:

a. formation of precipitation