What substance changes directly solid to gas
3 examples...
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Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?
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Chemistry, 22.06.2019 14:30
Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.
Answers: 1
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