Assertion: decay's life | /r/HasProperty | required for the reactant concentration
Facets:
value: to decrease
type: PURPOSE
Source sentences:
text: Thus the half-life of a reaction is the time required for the reactant concentration to decrease from [A] 0 to [A] 0/2 .
text: Thus the half-life of a reaction is the time required for the reactant concentration to decrease from [A] 0 to [A] 0