Chemistry, 25.01.2022 02:30 rainbowdashgirl68
How much of a 500g sample of potassium-42 is left after 37.2 hours if the half-life of potassium-42 is 12.4 hours.
Answers: 3
Chemistry, 22.06.2019 10:10
Stage in which a typical star has completely stopped fusion
Answers: 1
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) β c2h2 (g) + caoh2 (s) =Ξ΄hβ414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) β 5ch2chco2h (g) =Ξ΄h132.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
Chemistry, 23.06.2019 01:20
Use the de broglie's wave equation to find the wavelength of an electron moving at 4.5 Γ 106 m/s. show your work. note: h= plank's constant (6.62607 x 10-34 j s)
Answers: 1
How much of a 500g sample of potassium-42 is left after
37.2 hours if the half-life of potassium-4...
Chemistry, 15.04.2020 01:32
Social Studies, 15.04.2020 01:32
Mathematics, 15.04.2020 01:32
English, 15.04.2020 01:33
Advanced Placement (AP), 15.04.2020 01:33
Mathematics, 15.04.2020 01:33