What was used to determine the charge of an electron

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide