Chemistry, 23.06.2019 15:00 lucasrandall
Use the periodic table to identify the number of core electrons and the number of valence electrons in each case below. potassium (k): 1s22s22p63s23p64s1
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About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
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Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.
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Use the periodic table to identify the number of core electrons and the number of valence electrons...
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