WAEC - Chemistry (1994 - No. 7)
Which of the following would increase the rate of reaction of chips of a metal M as shown in the equation below? M(s) + 2HCI(aq) → MCI2(aq) + H2(g)
Diluting the hydrochloric acid
Adding some distilled water
Decreasing the temperature
Grinding the metal into powder
Increasing the pressure
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