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calculate the atomic number of an element whose neutral atom has four electrons in its valence shell and its valence shell is the m shell
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At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?
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How many atoms or molecules are there in a mole of a substance?
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Which process results in the release of energy stored in the products of photosynthesis? a. polymer synthesis b. depolymerization c. digestion d. cellular respiration
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calculate the atomic number of an element whose neutral atom has four electrons in its valence shell...
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