Question

give two examples of changes in which energy is released

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Answer 1

Answer:

When you burn something in presence of oxygen, energy is given out in the form of heat. The burning of a matchstick, the energy evolved is due to a chemical change. When we whitewash our house, we dissolve quicklime in water. Bubbles and gases evolve and the container becomes hot.

Explanation:

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Answer 2

Answer:

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