Given the balanced equation 2 A + B → 3 C, if the concentration of A decreases by 0.4 M in 2 minutes, what is the rate of formation of C?

• A. 0.4 M/min
• B. 0.2 M/min
• C. 0.3 M/min
• D. 0.6 M/min

Answer: (C)