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Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z
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Which of the following is not a true statement about dwarf planets? a the kuiper belt contains comets, asteroids, and dwarf planets. b ceres is a dwarf planet located in the kuiper belt. c the largest known dwarf planet in the solar system is named eris.
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Chemistry, 22.06.2019 12:30
A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml
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Chemistry, 22.06.2019 19:00
What information does a complete ionic equation give that the balanced equation doesn’t show?
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How are energy and mass connected during the formation of an atom?...
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