Question

Which of the two is a chemical change - cutting a log of wood or burning a log of wood? Give reasons for your answer.​

Answer 1

Answer:

cutting a long of wood it will make u a furniture

Answer 2

Answer:

burning a log of wood

Explanation:

The burning of wood leads to the formation of new substances like ash(carbon), carbon dioxide gas, water vapour, heat and light. This change is irreversible and hence a chemical change.While cutting wood into smaller pieces is a physical change as there is no change in the original composition of wood. Also, no new substances are formed