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Chemistry, 21.06.2019 22:30
Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.
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Chemistry, 21.06.2019 23:00
A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?
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Chemistry, 22.06.2019 07:30
Compare and contrast the bohr model and the electron cloud models of the atom.
Answers: 1
Chemistry, 22.06.2019 07:30
All cells are made of four types of acids, lipids, proteins, and carbohydrates.
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