Mg (s) + 2 HCl (aq) --> MgCl2 (aq) + H2 (g) Use the balanced chemical equation above to determine the number of moles of hydrogen gas that would be produced if 3.50 moles of solid magnesium reacted. please show all work and record your answer with proper units and significant figures.
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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

Find the mass in grams of 1.37x1020 particles of h3po4

The fact that the total amount of energy in a system remains constant is a(n)