Could I use a multimeter and photoresister to measure the glow of glow in the dark crystals? (The homemade ones that you make on a string submerged in like sugar and water).I’m hoping that someone who’s a lot older than me answers this bc they would probably be more accurate but it’s whatever. I’m out of my depth but I’m gonna keep going for now.

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 .