Chemistry C2 4.8 Energy and reversible reactions

Is a reversible reaction exothermic or endothermic?
In reversible reactions, the reaction in one direction is exothermic and in the other direction it is endothermic.
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In a reversible reaction, what is the amount of energy released equal to?
In any reversible reaction, the amount of energy released when the reaction goes in one direction is exactly equal to the energy absorbed when the reaction goes in the opposite direction.
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What are the characteristics of a reversible reaction?
Forward and reverse reactions involve equal but opposite energy transfers; if exothermic in one direction then endothermic in the other direction; energy released by the exothermic reaction exactly equals amount taken in by the endothermic reaction.
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What is the reaction when blue copper sulfate crystals are heated?
Endothermic.
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What is the reaction when water is added to anhydrous copper sulfate?
Exothermic.
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Why must blue copper sulfate be heated continuously to change it into anhydrous copper sulfate?
It is an endothermic reaction.
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Why does adding water to anhydrous copper sulfate cause the mixture to get hot?
It is an exothermic reaction.
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**LOOK UP THE REACTION OF BLUE COPPER SULFATE CRYSTALS BEING HEATED AND THE EQUATION**
**
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Card 2

Front

In a reversible reaction, what is the amount of energy released equal to?

Back

In any reversible reaction, the amount of energy released when the reaction goes in one direction is exactly equal to the energy absorbed when the reaction goes in the opposite direction.

Card 3

Front

What are the characteristics of a reversible reaction?

Back

Preview of the front of card 3

Card 4

Front

What is the reaction when blue copper sulfate crystals are heated?

Back

Preview of the front of card 4

Card 5

Front

What is the reaction when water is added to anhydrous copper sulfate?

Back

Preview of the front of card 5
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