A power plant built on the coast of an ocean can be designed to use the motion of water between high and low tides to generate electricity. a. what step of magnesium extraction might benefit from construction of such a power plant. explain your reasoning

b. give the balanced chemical equation that is associated with the step you identified. ​

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