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If an element has 4 valence electrons, how many dots will be in the elements dot diagram?
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Explain earth's motion, using the terms "precession" and "rotation" in your answer.
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The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
Answers: 1
Physics, 22.06.2019 16:30
Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same
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If an element has 4 valence electrons, how many dots will be in the elements dot diagram?...
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