1. Classify the following as
chemical or physical changes:
• cutting of trees,
melting of butter in a pan,
• rusting of almirah,
boiling of water to form steam,
passing of electric current,
through water and the water
breaking down into hydrogen
and oxygen gases,
• dissolving common salt in
water,
making a fruit salad with raw
fruits, and
burning of paper and wood.
at
ting the things
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