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Physical and Chemical Changes

Question 1 aC...

Question

Question 1 (a)
Classify the following as chemical or physical changes:
a. Cutting of trees

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Solution

Recall the definition of physical and chemical change. If the chemical composition is changing then it is a chemical change and if the chemical composition remains same, then it isa physical change.
a. Cutting of trees - Physical change

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Classify the following as physical or chemical changes:

(i) Cooking of food (ii) Boiling of water

(iii) Cutting of trees (iv) Dissolving salt in water

(v) Digestion of food (vi) Melting of ice

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