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MIN SE
Is copper (ll) chloride and ionic bond...
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Chemistry, 22.06.2019 00:00
Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
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Chemistry, 22.06.2019 00:10
Which of the following best describes the formation of plasma?
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Chemistry, 22.06.2019 10:30
Which characteristics can be used to differentiate star systems? check all that apply.
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