Study MATTER AND CHANGE Flash Cards

 
Pile Management Card
MATTER AND CHANGE

loading
mass is neither __________ nor __________-
created
destroyed
mass of products is = to mass of
reactants
precipitate
solids forms and settles out of a mixture
four possible clues to a chemical change
change of color
production of gas
formation of a precipitate
transfer of energy
A. Reactants -> products
B. Products -> reactants
A.
a change in matter __________ (always, sometimes, rarely, never) occurs during a chemical reaction
always.
the substances produced are called ___________ in a chemical reaction
products
the substances present at the start of the reaction are called _____________
reactants
chemical reaction =
new substance
mixture = composition _____________
mixed
substance= composition _________
fixed
sodium chloride is a _____________ of sodium which is a soft ______________ and chlorine which is a pale yellow ________________.
compound
metal
gas
compounds can be separated by _________ Means.
chemical
twogroups into which substances can be classified?
elements and compounds
does an elemet have a unique set of properties?
yes.
what happens in distillation?
liquid boiled into vapor into liquid....
ends in distilled water...
hense DISTILLTION.
process that separates a solid from a liquid? ____________________-tion
filtration
homogeneous mixture
solution
mixture = 2+
components
all physical changes are _____________...just like most windbreakers!
reversable!
physical change words?
boil, freeze, melt condense
a physical change alters a given material without changing its chemical __________________________.
composition.
vapor
the gaseous state of a substance that is liquid or solid at room temp
term gas is a substance that exists in the gasous state at : _____ ________-
room temperature
SOLID
arrangement of particles
TIGHT/close together
liquid
how are particles spaced?
close, BUT CAN FLOW.
gas
how are particles spaced?
spaced far apart
gas or vapor

shape? deff/indeff
volume? "
can be easily compressed?
indefinite shape
indefinite volume
can be easily compressed
Liquid

shape? definite/indef
volume? "
can be easily compressed?
indefinite shape
definite volume
can not be easily compressed
solid:

SHAPE? definite/indefinite
VOLUME? deffinite/indefinite
Can be compressed? easily/not easily
definite shape
definite volume
can not be easily compressed
physical state of matter
(easy!)
solid
liquid
gas
PHYSICAL PROPERTIES

MCCH
hardness
color
conductivity
malleability
a physical property is a quality or condition of a substance that can be _____________ or _______________ without changing the substance's composition
observed measured
matter that has a uniform and definite composition
substance
intensive
and example
type of matter
(density)
extensive
and example
amount of matter
(mass)
MASS
the amount of matter an object contains
Place this card into pile: