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How do the number of electrons change across the periodic table?
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The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?
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Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?
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How do the number of electrons change across the periodic table?...
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