Answer :
A reaction is said to be "finished" when it reaches equilibrium, or when the concentrations of the reactants and products stop changing. By counting the amount of product produced over a predetermined amount of time, one can determine the reaction's pace.
A solid product's mass is frequently expressed in grams, but a gaseous product's volume is typically expressed in cm3. The duration selected might be influenced by the reaction's rate. Tests that measure reaction times (RTs) are regarded as quick and accurate ways to identify variations in cognitive performance. RT tests track how long passes between a stimulus and a subject's reaction to it.
To learn more about cognitive performance follow the below link:
https://brainly.com/question/12755040
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