Aneutral atom has an atomic number of 20 and a mass number of 41; how many protons, neutrons, and electrons are found within the atom? a) 21 protons, 21 electrons, and 20 neutrons b) 20 protons, 20 electrons, and 21 neutrons c) 21 protons, 20 electrons, and 20 neutrons d) 41 protons, 41 electrons, and 20 neutrons

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 .