Original free-response prompts for AP® Chemistry that mimic the questions found on the real exam. Our expert authors also provide an exemplary response for each AP free response question so students can better understand what AP graders look for.
10 Electrochemistry
N2(g) + 8 H3O(aq) + 6 e- >>>> 2 NH4(aq) +8 H2O(l)
A battery is an electrochemical cell, or a collection of such cells, that produces a current or flow of electrons at a constant voltage as a result of an electron transfer reaction. The power to run your calculator or computer or to start your car, or even to propel your ZEV, comes from a battery
Electrolysis Experiment
Practice electolysis with this instructional applet (requires Shockwave)
Electrochemical/Galvanic Cell
Practice with this useful applet (requires Shockwave)