Galvanic cell runs on the following reaction: al (s) + fe3+ (aq) → al3+ (aq) + fe (s) draw a diagram for this galvanic cell, labeling the electron flow, the anode and cathode, and the positive and negative sides of the galvanic cell. answer only if you know show the diagram ! i don't understand

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt