Reaction rate can be defined as:

A. Whether the reaction is endothermic or exothermic.
B. The amount of reactant consumed by a reaction over time.
C. The total amount of reactants used in a reaction.



Answer :

Final answer:

Reaction rate is the change in concentration of a reactant or product over time and can be determined by measuring various properties. The rate of a reaction is affected by the concentrations of the reactants.


Explanation:

Reaction rate refers to the change in concentration of a reactant or product per unit of time. Rates of reactions are determined by measuring changes in properties related to reactants or products, such as volume, pressure, light absorption, or conductivity. The rate of a reaction is influenced by the concentration of the reactants involved.


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