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The heat needed for chemical reaction to take place is called _____.

A. heat of reaction
B. activation energy
C. friction

User Luiz Avila
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The heat needed for a chemical reaction to take place is called activation energy. The correct answer is b. Activation energy is also referred to as the minimum amount of energy needed to jump start a chemical reaction. A reaction requiring a large amount of energy to be triggered is said to have a high activation energy while a smaller amount is said to have low activation energy.
User Edmundito
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