propertiesofmatter.si.edu

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Definitions (164)

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tarnish


Discoloration of the surface of a metal due to dirt or corrosion.
Source: propertiesofmatter.si.edu

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acid


Any substance that, when dissolved in water, has a sour taste, the ability to turn blue litmus red, and the ability to react with bases and certain metals to form salts.
Source: propertiesofmatter.si.edu

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ball bearing


A ring-shaped track containing freely revolving, hard metal balls against which a rotating shaft or other part turns. Ball bearings reduce friction between moving parts of a machine.
Source: propertiesofmatter.si.edu

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ballast tanks


Watertight tanks on the bottom or sides of ships used to increase stability.
Source: propertiesofmatter.si.edu

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barium chromate


(BaCrO4). An anti-corrosive agent used as a yellow pigment in paints.
Source: propertiesofmatter.si.edu

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benzene


(C6H6) A colorless, flammable liquid derived from petroleum and used in a wide variety of chemical products, including DDT, detergents, insecticides, and motor fuels. Benzene can cause cancer.
Source: propertiesofmatter.si.edu

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cadium sulfide


(CdS). A yellow sulfide used chiefly as a pigment.
Source: propertiesofmatter.si.edu

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calibrate


To check, adjust, or determine by comparison with a standard.
Source: propertiesofmatter.si.edu

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carbonate


A chemical compound that contains CaCO3.
Source: propertiesofmatter.si.edu

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carcinogen


Any substance or agent that promotes cancer.
Source: propertiesofmatter.si.edu


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