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29 Cards in this Set
- Front
- Back
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ORGANIC |
the study of substances containing carbon |
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INORGANIC |
the study of substances lacking carbon |
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CHEMISTRY |
the study of the composition of substances/matter |
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PHYSICAL CHEMISTRY |
study of theories or experiments that describe the behavior of chemicals |
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BIOCHEMISTRY |
study of chemistry of the living organisms |
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SCIENTIFIC METHOD |
an approach to the solution of scientific problems
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HYPOTHESIS |
a proposed reason for what is observed |
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EXPERIMENT |
a means of testing a hypothesis |
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THEORY |
a thoroughly tested explanation of why experiments give certain results and allowed one to predict behaviors of the system |
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SCIENTIFIC LAW |
a concise statement that summarizes the result of a broad spectrum of observation and experiments. It describes natural phenomenon but does nor explain it. |
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MATTER |
anything with mass or volume |
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PURE SUBSTANCES |
matter that has uniform composition |
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pure substances maybe be classified as .... |
elements or compounds |
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MIXTURES |
to or more substances combines in varying proportions physically,each retaining its own specific properties |
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PHYSICALLY |
how can you seperate a mixture ? w/out breaking chemical bonds |
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COMPOUND |
substance that contains two or more elements, in definite proportion by mass, combined chemically |
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MOLECULE |
the smallest unti |
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HETEROGENOUS |
mixture in which the properties and composition are not uniform throughout |
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SOLID |
matter that has definite shape or volume |
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gas liquid |
matter that flows, has a fixed volume and takes the shape of its containes |
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vapor |
a substance in gaseous state in generally a liquid or solid of room temp |
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Physical Change |
a change which alters substance w/out changing its composition (for example, change in state or physical properties. |
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NEW SUBSTANCES |
mean by which one or more substances change into new substances with new properties |
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solute reactant |
starting substance |
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solut product |
the new substance |
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law of conservation |
the law which states that mss is neither created nor destroyed in a physical or chemical reaction |
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chemical property |
the ability to undergo chemical reactions and to form new substances |
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physical property |
properties observed using the senses w/out changing the identity of the substanceoloc ex; color luster |
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Elements |
smallest for of matter
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