exothermic and endothermic reactions

Question 1

BENDOMEX

Answer 1

breaking endothermic
making exothermic

Question 2

endothermic

Answer 2

a reaction which takes in heat in its process

Question 3

exothermic

Answer 3

a reaction which produces heat during its process

Question 4

describe the temperature change for endothermic and exothermic reactions

Answer 4

endothermic has a temp decrease
exothermic has a temp increase

Question 5

give 3 examples of endothermic reactions

Answer 5

thermal decomposition
photosynthesis
sports injury packs

Question 6

give 3 examples of exothermic reactions

Answer 6

hand warmers
self heating cans
combustion
respiration
neutralisation reactions

Question 7

activation energy

Answer 7

the minimum amount of energy required to start a reaction

Question 8

draw the energy profile diagram for an exothermic reaction

Question 9

draw the energy profile diagram for an endothermic reaction

Question 10

where are the products in relation to the reactants in each reaction?

Answer 10

endo-products higher
exo-products lower

Question 11

what does the difference in height represent?

Answer 11

overall energy change