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Compare and contrast physical changes with chemical changes.
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Acertain atom has 22 protons and 19 electrons. this atom loses an electron. the net charge on the atom is now 4+1+01-4-. if this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be 3+2+02-3-.
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how do you slve PV x _ = nRT x _ ? the underscore are blanks. The question and direction is "In orde...
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