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Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.
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How have the greenhouse gasses increased from the year 2000 to 2018
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Ablock of aluminum is dropped into a graduated cylinder with an initial volume of water at 75ml and the volumes rises to 90ml. if the block has a mass of 40.5 g what is its density ?
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When the equation Fe + Cl2 --> FeCl3 is balanced, what is the coefficient for iron (III) chloride...
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