Which ecosystem is the least stable
...
Answers: 1
Chemistry, 21.06.2019 14:10
How does chemistry affect our world? a. chemicals makes our world more polluted. b. chemicals keeps us healthy. c. chemicals can or hurt our world. d. chemicals make our world safe to live in.
Answers: 1
Chemistry, 21.06.2019 15:40
Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.
Answers: 3
Chemistry, 22.06.2019 19:30
Acetylene gas c2h2 undergoes combustion to produce carbon dioxide and water vapor how many grams of water are produced by the same amount of c2h2?
Answers: 2
Chemistry, 22.06.2019 20:00
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 .
Answers: 3
Mathematics, 13.10.2020 15:01
English, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01
Social Studies, 13.10.2020 15:01
Physics, 13.10.2020 15:01
Mathematics, 13.10.2020 15:01