A student performs 3 experiments using Zn and HCl. She varies the conditions of the experiments as follows: Experiment 1: zinc strip in 1.0 M HCl at 25°C
Experiment 2: zinc strip in 2.0 M HCl at 25°C
Experiment 3: zinc powder in 2.0 M HCl at 25 °C In which experiment will the rate be the greatest? Explain why.