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Endothermic reactions are reactions that take in energy from the surroundings leading to the decrease in the temperature of the surroundings.
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Endothermic reactions absorb or take-in energy.
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Bond breaking is an endothermic reaction because energy must be taken-in to break bonds.
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Understand that the word endo means inside. You can use this to grasp the concept that exothermic reactions take-in energy or simply absorb energy inside a body or something like that.
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Exothermic reactions are reactions which transfer thermal energy to the surroundings which causes the temperature of the surroundings to increase.
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Exothermic reactions release heat to the suroundings.
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In this type of reaction, the energy of the reactants is more or larger than that of the products. This is why on a reaction diagram the reactant is on a high level and the product is on a lower level.
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Bond making is an exothermic reaction because energy (heat energy, to be exact) is released or given out when bonds are made.
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Understand that the word exo means external or outside , this will enable you to understand that energy is given out in an exothermic reaction.
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Activation energy E
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Enthalpy change H
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Activation energy is the minimum amount of energy required for colliding materials to react.
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Enthalpy change is the transfer of thermal energy.
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Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
