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| mass is neither __________ nor __________- |
created
destroyed |
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porkchoppony Wed, 29 Sep 2010 01:07:33 GMT |
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| mass of products is = to mass of |
reactants |
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porkchoppony Wed, 29 Sep 2010 01:07:02 GMT |
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| precipitate |
solids forms and settles out of a mixture |
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porkchoppony Wed, 29 Sep 2010 01:07:02 GMT |
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| four possible clues to a chemical change |
change of color
production of gas
formation of a precipitate
transfer of energy |
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porkchoppony Wed, 29 Sep 2010 01:07:02 GMT |
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A. Reactants -> products
B. Products -> reactants |
A. |
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porkchoppony Wed, 29 Sep 2010 01:07:02 GMT |
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| a change in matter __________ (always, sometimes, rarely, never) occurs during a chemical reaction |
always. |
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porkchoppony Wed, 29 Sep 2010 01:02:29 GMT |
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| the substances produced are called ___________ in a chemical reaction |
products |
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porkchoppony Wed, 29 Sep 2010 01:02:29 GMT |
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| the substances present at the start of the reaction are called _____________ |
reactants |
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porkchoppony Wed, 29 Sep 2010 01:02:29 GMT |
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| chemical reaction = |
new substance |
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porkchoppony Wed, 29 Sep 2010 01:02:29 GMT |
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| mixture = composition _____________ |
mixed |
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porkchoppony Wed, 29 Sep 2010 01:00:04 GMT |
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| substance= composition _________ |
fixed |
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porkchoppony Wed, 29 Sep 2010 01:00:04 GMT |
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| sodium chloride is a _____________ of sodium which is a soft ______________ and chlorine which is a pale yellow ________________. |
compound
metal
gas |
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porkchoppony Wed, 29 Sep 2010 01:00:04 GMT |
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| compounds can be separated by _________ Means. |
chemical |
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porkchoppony Wed, 29 Sep 2010 01:00:04 GMT |
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| twogroups into which substances can be classified? |
elements and compounds |
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porkchoppony Wed, 29 Sep 2010 00:55:54 GMT |
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| does an elemet have a unique set of properties? |
yes. |
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porkchoppony Wed, 29 Sep 2010 00:55:54 GMT |
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| what happens in distillation? |
liquid boiled into vapor into liquid....
ends in distilled water...
hense DISTILLTION. |
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porkchoppony Wed, 29 Sep 2010 00:55:54 GMT |
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| process that separates a solid from a liquid? ____________________-tion |
filtration |
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porkchoppony Wed, 29 Sep 2010 00:55:54 GMT |
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| homogeneous mixture |
solution |
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porkchoppony Wed, 29 Sep 2010 00:53:11 GMT |
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| mixture = 2+ |
components |
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porkchoppony Wed, 29 Sep 2010 00:53:11 GMT |
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| all physical changes are _____________...just like most windbreakers! |
reversable! |
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porkchoppony Wed, 29 Sep 2010 00:53:11 GMT |
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| physical change words? |
boil, freeze, melt condense |
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porkchoppony Wed, 29 Sep 2010 00:53:11 GMT |
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| a physical change alters a given material without changing its chemical __________________________. |
composition. |
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porkchoppony Wed, 29 Sep 2010 00:52:11 GMT |
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| vapor |
the gaseous state of a substance that is liquid or solid at room temp |
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porkchoppony Wed, 29 Sep 2010 00:52:11 GMT |
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| term gas is a substance that exists in the gasous state at : _____ ________- |
room temperature |
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porkchoppony Wed, 29 Sep 2010 00:52:11 GMT |
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SOLID
arrangement of particles |
TIGHT/close together |
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porkchoppony Wed, 29 Sep 2010 00:52:11 GMT |
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liquid
how are particles spaced? |
close, BUT CAN FLOW. |
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porkchoppony Wed, 29 Sep 2010 00:49:30 GMT |
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gas
how are particles spaced? |
spaced far apart |
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porkchoppony Wed, 29 Sep 2010 00:49:30 GMT |
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gas or vapor
shape? deff/indeff
volume? "
can be easily compressed? |
indefinite shape
indefinite volume
can be easily compressed |
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porkchoppony Wed, 29 Sep 2010 00:49:30 GMT |
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Liquid
shape? definite/indef
volume? "
can be easily compressed? |
indefinite shape
definite volume
can not be easily compressed |
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porkchoppony Wed, 29 Sep 2010 00:49:30 GMT |
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solid:
SHAPE? definite/indefinite
VOLUME? deffinite/indefinite
Can be compressed? easily/not easily |
definite shape
definite volume
can not be easily compressed |
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porkchoppony Wed, 29 Sep 2010 00:47:12 GMT |
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physical state of matter
(easy!) |
solid
liquid
gas |
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porkchoppony Wed, 29 Sep 2010 00:47:12 GMT |
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PHYSICAL PROPERTIES
MCCH |
hardness
color
conductivity
malleability |
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porkchoppony Wed, 29 Sep 2010 00:47:12 GMT |
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| a physical property is a quality or condition of a substance that can be _____________ or _______________ without changing the substance's composition |
observed measured |
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porkchoppony Wed, 29 Sep 2010 00:47:12 GMT |
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| matter that has a uniform and definite composition |
substance |
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porkchoppony Wed, 29 Sep 2010 00:43:47 GMT |
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intensive
and example |
type of matter
(density) |
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porkchoppony Wed, 29 Sep 2010 00:43:47 GMT |
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extensive
and example |
amount of matter
(mass) |
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porkchoppony Wed, 29 Sep 2010 00:43:47 GMT |
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| MASS |
the amount of matter an object contains |
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porkchoppony Wed, 29 Sep 2010 00:43:47 GMT |
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