Which reaction is endothermic? exothermic? explain your answer

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Which reaction is endothermic? exothermic? explain your answer​

Answer:

ANSWER!!!

Reactions and temperature changes

Energy is conserved in chemical reactions, so the total amount of energy in the universe at the end of a reaction is the same as it was before the reaction.

When a chemical reaction happens, energy is transferred to or from the surroundings. When energy is transferred to the surroundings, this is called an exothermic reaction, and the temperature of the surroundings increases. Examples of exothermic reactions include:

Explanation:

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