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During a phase change, the ____ of the substance is constant.
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atomic number
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Electrochemical cells generate electricity by ____ reactions.
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charge
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One cubic centimeter of water at 4°C has a mass of one ____.
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gram
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An element's ____ is the number of its protons.
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heat
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An element's ____ is the number of its protons plus neutrons.
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mass number
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Most chemical reactions release or absorb ____.
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molarity
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Moles of solute divided by liters of solution is ____.
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redox
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A salt contains anions and cations, but has no net ____.
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temperature
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