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Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.
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Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?
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Why is the structure of molecule important to its function?
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A teacher is explaining waves to her students. Explain what must happen at the particle level in ord...
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