Question

1 : Burningof wood is a chemical change. Justify this statement.​

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.

Explanation:

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Answer 2

Answer:

in burning of wood new substance are formed and hence it is a chemical change while cutting out into small pieces no new substance is formed thus it is a physical change his burning of wood and cut into small pieces are consider of two different type of changes