Strips of aluminum and lead will react with hydrochloric acid, but a silver strip will not. A reaction was observed when an Al strip was placed in solution of Pb(NO3)2 and AgNO3. No reaction was
observed when an Ag strip was placed in a Pb(NO3)2 solution. Arrange the metals and hydrogen in
a relative reactive series, listing the most reactive first.

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .