Question

IS BURNING A PHYSICAL OR A CHEMICAL CHANGE? JUSTIFY

Answer 1

Answer:

Burning of wood is a chemical change as new substances which cannot be changed back (e.g. carbon dioxide) are formed. For example, if wood is burned in a fireplace, there is not wood anymore but ash. Other examples include burning of a candle, rusting of iron, baking a cake, etc.

Answer 2

burning is a chemical change because it is changing the state of wood into ashes