10. How many liters of hydrogen gas is formed when 13.5-grams of calcium reacts with sulfuric acid (H2SO4)? Ca + H2SO4 H2 + CaSO4 ANS: 7.56 L H2 11. Ammonia, (NH3) is produced by reacting its elements with each other according to the following equation: ___N2 + ___H2 ___NH3 If 34.3-L of nitrogen is reacted with hydrogen, how many liters at STP of ammonia will be formed? ANS: 68.6 L NH3 12. 14.5-g of cesium explosively reacts with water to form hydrogen and cesium hydroxide. How many liters of hydrogen were formed? ____Cs + ___H2O ___H2 + ___CsOH ANS: 1.22 L H2 13. Calculate the mass of silver needed to react with chlorine to produce 84 g of silver chloride. ___Ag + ___Cl2 ___AgCl ANS: 63.2 g Ag 14. A volume of 7.5 L of hydrogen gas was produced from the single replacement reaction of zinc and nitric acid (HNO3). Calculate the mass of zinc needed for this reaction. ___Zn + ___HNO3 ___Zn(NO3)2 + __H2 ANS: 21.9 g Zn 15. Calculate the volume of carbon dioxide produced when 250 g of pentane, C5H12, burn. Assume the carbon dioxide is cooled to STP? ___C5H12 + __O2 ___CO2 + ___H2O ANS: 388 L CO2 16. Silver Nitrate reacts with sodium chloride to make the silver chloride and sodium nitrate. When 2.53 grams of silver nitrate is reacted. How many grams of silver chloride are formed? ___AgNO3 + ___NaCl ___AgCl + ___NaNO3 ANS: 2.13 g AgCl 17. Methane (CH4) is burned in air. When 50.6 L of methane is burned how many grams of carbon dioxide will be formed? ___CH4 + ___O2 ___CO2 + ___H2O ANS: 99.4 g CO2