coltonlayton7899 coltonlayton7899 08-02-2024 Chemistry contestada In a first-order reaction, the concentration of the reactant, decreases from 0.8 M to 0.4 M in 15 minutes half life. The time taken for the concentration to charge from 0.1 M to 0.025 M is:A. 30 minutesB. 15 minutesC. 7.5 minutesD. 60 minutes