Chemistry, 02.10.2019 14:00 andybiersack154
The average atomic mass of oxygen is 15.9994 amu. the atomic masses of its three isotopes are as follows: 0-16: 15.995 amu; 0-17: 16.999 amu; 0-18: 17.999 amu which isotope is most likely to have the greatest abundance in nature?
Answers: 1
Chemistry, 22.06.2019 15:00
Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.
Answers: 2
Chemistry, 22.06.2019 15:10
The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?
Answers: 2
Chemistry, 23.06.2019 05:00
How many atomic mass units are equal to 1.672×10−24 g of protons?
Answers: 3
The average atomic mass of oxygen is 15.9994 amu. the atomic masses of its three isotopes are as fol...
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