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Chemistry, 21.06.2019 18:30
Amass of 100.0 g of solute is dissolved in water so that 850. ml of a 0.7500 m solution has been prepared. what is the molar mass of the solute?
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If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?
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Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules
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Chemistry, 22.06.2019 14:30
The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as
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Isotopes are atoms of the same element with different numbers of...
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