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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 water breaking down into hydrogen and oxygen gas

• Dissolving common salt in water

• Making a fruit salad with raw fruits

• Burning of paper and wood

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• Cutting of trees → Physical change • Melting of butter in a pan → Physical change • Rusting of almirah → Chemical change • Boiling of water to form steam → Physical change • Passing of electric current through water, and water breaking down into hydrogen...
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• Cutting of trees → Physical change

• Melting of butter in a pan → Physical change

• Rusting of almirah → Chemical change

• Boiling of water to form steam → Physical change

• Passing of electric current through water, and water breaking down into hydrogen and oxygen gas → Chemical change

• Dissolving common salt in water → Physical change

• Making a fruit salad with raw fruits → Physical change

• Burning of paper and wood → Chemical change

read less
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