Chemistry, 05.08.2021 21:10 genyjoannerubiera
Which statement about an atom is true ?
1. all the elements have only one nucleon (mass) number.
2. the nucleon (mass )number can be less than the proton (atomic) number.
3. the nucleon (mass) number can equal the proton (atomic) number.
4. the number of neutrons never equals the number of electrons.
Answers: 3
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The three types is stress that act on earths rocks are compression, tension, and
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Chemistry, 22.06.2019 15:00, levelebeasley1
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 23:00, poolwaterisgross
How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.
Answers: 1
Which statement about an atom is true ?
1. all the elements have only one nucleon (mass) number.
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