How many atoms are in 365 grams of CaCl2

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

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

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?