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How many moles of magnesium is 3.01 x10^22 atoms of magnesium?
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Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.
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As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.
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Which component is released from the active site of an enzyme during a chemical reaction?
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