A. A straight line with a positive slope
B. A curved line with a negative slope
C. A straight line with a negative slope
D. A horizontal line
Answer: A straight line with a negative slope
Which graph represents the concentration of a reactant in a zero-order reaction?
Additional Information: For a zero-order reaction, the concentration of the reactant decreases linearly with time, resulting in a straight line with a negative slope.
Subjects: Chemical Kinetics, Chemistry