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What is the purpose of a chemical equation and why it must be
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Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?
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Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?
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Which of the following is the molecular formula for a simple sugar? a. cooh b. h2o c. oh d. c6h12o6
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What is the purpose of a chemical equation and why it must be...
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