4.8 Energy And Reversible Reactions Flashcards Preview

GCSE Chemistry 2.4 Rates And Energy > 4.8 Energy And Reversible Reactions > Flashcards

Flashcards in 4.8 Energy And Reversible Reactions Deck (9)
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1

A reversible reaction is endothermic one way. What must the other way be?

Exothermic

2

What does the amount of energy in the exothermic reactions exactly equal?

The amount of energy taken in by the endothermic reaction

3

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

Endothermic

4

What is the word equation for the endothermic reaction of blue copper sulfate crystals?

Blue crystals of hydrated copper sulfate white powder of anhydrous copper sulfate + water

5

What does anhydrous mean?

A substance that doesn't contain water

6

What does hydrated mean?

A substance that does contain water

7

Why must blue copper sulfate be heated continuously to change in into anhydrous copper sulfate?

It is an endothermic reaction so requires energy to break bonds

8

Why does adding water to anhydrous copper sulfate cause the mixture to get hot?

It is n exothermic reaction so gives out energy to make bonds

9

What energy transfers are required in reversible reactions?

Equal but opposite