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Stress Pattern

Number of Syllables

Primary Stress

en do THER mic or EN do ther mic

4

third

Suggested exercises

1. Help a student remember whether it is an endothermic reaction or an exothermic reaction that generate heat.

Useful words

endo- (Latin, inside)
exo- (Latin, outside)
endo- take in heat
exo- give off heat
think of  H as a reactant
flask feels cold 

2. For the diagram shown, explain what is the "system" and what is the "surroundings".

reactants
products
solvent
flask
laboratory air
thermostatic bath

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