please answer the following as soon as possible

One gram of zinc metal react with excess hydrochloric acid based on the following reaction: Zn+2HClZnCl2+H2 Which substance will limit the amount of hydrogen gas produced? A) HCl B) There is no limiting reagent C) There is not enough information to answer the question D) H2 E) Zn Which of the following is true about this image of electrodes A and B ? Electrode A was the cathode whereas electrode B was the anode Electrode A is the least reactive metal whereas electrode B is the most reactive metal Electrode A demonstrated oxidation whereas electrode B demonstrated reduction Electrode A demonstrated reduction whereas electrode B demonstrated oxidation Electrons were gained at electrode A whereas electrons were lost at electrode B Which one of the following cases will less likely undergo oxidation non-galvanized nails in a bench located outside near a park. an apple that has been partially eaten metal inside a vacuum sealed container aluminum foil covering a iron dish filled with pasta in an acidic tomato sauce. a metal shovel left outside in a bucket of water In the reaction of Mn(s)+Cu2+(aq)Mn2+(aq)+Cu(s) is undergoing oxidation and is the oxidizing agent Mn(s);Cu2+(aq)Cu2+(aq);Mn(s)Cu2+(aq);Cu2+(aq)Mn2+(aq);Cu(s)Mn(s);Mn(s) In a reaction, iron was added to copper (II) sulfate generating copper and iron (II) sulfate. If 4.1g of copper was the actual amount obtained in a reaction and the predicted yield was 6.8g, determine the percentage yield