dissolving table salt in water hammering aluminum into thin sheets melting gold to make jewelry burning wood to produce ashes
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which activity is an example of a chemical change?
Possibilities:
- dissolving table salt in water
- hammering aluminum into thin sheets
- melting gold to make jewelry
- burning wood to produce ashes

burning wood to produce ashes