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The curved upper surface of a column of liquid is the ____.
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mass
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A proton and a neutron have about the same ____ (1 amu).
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meniscus
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Carbon, oxygen, and sulfur are examples of ____ elements.
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metal
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Copper, gold, iron, lead, mercury, and silver are ____ elements.
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nonmetal
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A solid that settles out of a suspension is called a ____.
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nucleus
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A ____ is used to transfer a measured volume of liquid.
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pipette
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Protons and neutrons are located in an atom's ____ (center).
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precipitate
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A solute is dissolved in a solvent to form a ____.
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solution
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