Chemistry, 25.01.2020 00:31 babyboo6745
Iron has a work function (φ) of 4.50 ev. what is the longest wavelength of light that will cause the ejection of electrons? (1 ev=1.6 × 10⁻¹⁹ j)
Answers: 3
Chemistry, 23.06.2019 04:00
Which of these are physical changes in matter? check all that apply boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese
Answers: 1
Chemistry, 23.06.2019 08:10
Time remaining 58: 10 an atom that has 84 protons and 86 neutrons undergoes a reaction. at the end of the reaction, it has 82 protons and 84 neutrons. what happened to the atom? it accepted radiation in a chemical reaction it donated neutrons to another atom in a chemical reaction it emitted an alpha particle in a nuclear reaction. it accepted protons in a nuclear reaction. mark this and retum save and exit next submit
Answers: 3
Chemistry, 23.06.2019 13:30
Asap a 50.0 ml soap bubble is blown in a 27.0°c room. it drifts out an open window and lands in a snow bank at -3.0°c. what is its new volume?
Answers: 1
Iron has a work function (φ) of 4.50 ev. what is the longest wavelength of light that will cause the...
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