For a total mass of water weighing 190 g, the mass of h is 21 g and the mass of o is 169
g. what is the percent composition of h in water

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

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?

Why do oxygen have a strong attractive force for electrons