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प्रश्न
Why energy is involved in a chemical change?
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उत्तर
In every chemical change, change in energy is involved.
There is a difference between the chemical energies of the reactants and products. It involves the breaking up of chemical bonds between the atoms resulting in the absorption of energy in the form of heat and simultaneous formation of bonds with the release of energy.
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संबंधित प्रश्न
Identify the endothermic and exothermic reaction.
\[\ce{CaO + H2O -> Ca(OH)2 + Heat}\]
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A photochemical reaction involving silver salt.
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A catalytic, reversible, exothermic reaction.
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electrochemical reaction
Complete the statement by filling in the blank with the correct word:
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Give scientific reason.
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