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39 Cards in this Set
- Front
- Back
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solid
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the state of matter in which the substance has definite volume and definite
shape |
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reactant
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a substance that reacts in a chemical change
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pure substance
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a substance that has a fixed composition and differs from a
mixture in that every sample of a given pure substance has exactly the same characteristic properties and composition |
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product
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a substance that is formed by a chemical change
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plasma
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a high-temperature physical state of matter in which atoms lose their
electrons |
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physical property
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a characteristic that can be observed or measured without
changing the identity of the substance |
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physical change
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a change in a substance that does not involve a change in the
identity of the substance |
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period
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a horizontal row of elements in the periodic table
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nonmetal
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an element that is a poor conductor of heat and electricity
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mixture
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a blend of two or more kinds of matter, each of which retains its own
identity and properties |
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metalloid
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an element that has some characteristics of metals and some
characteristics of nonmetals |
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metal
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an element that is a good conductor of heat and electricity
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matter
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anything that has mass and takes up space
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mass
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a measure of the amount of matter
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liquid
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the state of matter in which the substance has a definite volume but an
indefinite shape |
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intensive property
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a property that does not depend on the amount of matter
present |
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homogeneous
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having a uniform composition throughout
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heterogeneous
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not having a uniform composition throughout
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group
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a vertical column of the periodic table
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gas
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the state of matter in which a substance has neither definite volume nor
definite shape |
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family
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a vertical column of the periodic table
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extensive property
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a property that depends on the amount of matter that is
present |
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element
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a pure substance made of only one kind of atom
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compound
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a substance that is made from the atoms of two or more elements
that are chemically bonded |
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chemistry
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the study of the composition, structure, and properties of matter and
the changes it undergoes |
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chemical reaction
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a reaction in which one or more substances are converted
into different substances |
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chemical property
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the ability of a substance to undergo a change that
transforms it into a different substance |
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chemical change
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a change in which one or more substances are converted into
different substances |
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chemical
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any substance that has a definite composition
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change of state
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a physical change of a substance from one state to another
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atom
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the smallest unit of an element that maintains the properties of that
element |
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Organic chemistry
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the study of most carbon-containing compounds
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Inorganic
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the study of all substances not classified as organic,mainly those compounds that do not caontain carbon
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Physical chemistry
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the study of the properties and changes of matter and their relation to energy
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Analytical chemistry
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the identification of the components and composition of materials
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Biochemsitry
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the study of substances and processes occuring in living things
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Theoretical chemistry
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the use of mathematics and computers to understnd the priciples behind observed chemical behavior and to design and predict the properties of new compunds
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Basic research
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carried out for the sake of increasing knowledge, such as how and why a specific reacton occurs and what the properties of a substance are.-- Teflon
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Applied research
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generally carried out to sove a problem -- AIDS
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