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23 Cards in this Set
- Front
- Back
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Chemical property
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the ability of a substance to undergo chemical reactions and to form new substances.
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Chemical reaction
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the changing of substance sot other substances by the breaking of bonds in reactants and the formation of bonds in products.
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Chemical symbol
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a one or two letter representation of an element.
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Compound
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a substance that can be separated into simpler substances (elements or other compounds) only by chemical reactions.
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Distillation
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a purification process in which a liquid is evaporated and then condensed again to a liquid.
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Element
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a substance that cannot be changed into simpler substances under normal laboratory conditions.
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Gas
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matter that has no definite shape or volume; it adopts the shape and volume of its container.
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Heterogeneous mixture
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a mixture that is not uniform in composition; its components are readily distinguished.
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Homogeneous mixture
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a mixture that is completely uniform in composition; components are not distinguished.
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Law of conservation of mass
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energy is neither created nor destroyed in an ordinary chemical or physical process.
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Liquid
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a form of matter that flows, has a fixed volume, and takes the shape of its container.
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Mass
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the amount of matter that an object contains; the SI base unit of mass is the kilogram.
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Matter
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anything that takes up space and has mass.
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Mixture
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a physical blend of two or more substances that are not chemically combined.
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Phase
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any part of a system with uniform composition and properties.
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Physical change
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an alteration of a substance that does not affect its chemical composition.
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Physical property
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a quality of a substance that can be observed r measured without changing the substance’s chemical composition.
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Product
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a substance formed in a chemical reaction.
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Reactant
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a starting substance in a chemical reaction.
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Solid
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matter that has a definite shape and volume.
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Solution
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a homogeneous mixture.
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Substance
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a sample of matter having a uniform and definite composition; it can be an element or a compound.
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Vapor
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a substance in the gaseous state that is ordinarily a liquid or solid at room temperature.
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