C2.8 Energy Change

Question 1

What does the term exothermic mean?

Answer 1

A chemical reaction which gives out heat to it’s surroundings.

Question 2

What does the term endothermic mean?

Answer 2

A chemical reaction which takes in heat from it’s surroundings

Question 3

Is neutralisation an example of an endothermic or exothermic reaction?

Answer 3

Exothermic

Question 4

Is displacement an example of an endothermic or exothermic reaction?

Answer 4

Exothermic

Question 5

Is combustion an example of an endothermic or exothermic reaction?

Answer 5

Exothermic

Question 6

Is the hydration of anhydrous salts an example of an endothermic or exothermic reaction?

Answer 6

Exothermic

Question 7

Is rusting an example of an endothermic or exothermic reaction?

Answer 7

Exothermic

Question 8

Is the dehydration of hydrated salts an example of an endothermic or exothermic reaction?

Answer 8

Endothermic

Question 9

Is thermal decomposition an example of an endothermic or exothermic reaction?

Answer 9

Endothermic

Question 10

Is electrolysis an example of an endothermic or exothermic reaction?

Answer 10

Endothermic