Question Answer
Matter that has a definite shape
and volume solid
Matter that changes in volume with
changes in temperature and pressure
gas
A ____________ change of matter is
when no change is made to the
chemical composition of a substance.
physical
Simplest of substances and is represe...
HESI-A2
HESI A2 CHEMISTRYCHEMISTRY NTE CARDS
AND ENTRANCE
Chemistry EXAM
note cards for HESI entrance
exam
Question Answer
Matter that has a definite shape
solid
and volume
Matter that changes in volume with
changes in temperature and pres- gas
sure
A ____________ change of matter is
when no change is made to the
physical
chemical composition of a sub-
stance.
Simplest of substances and is rep-
element
resented by a letter or letters
Law that states matter can neither
be created nor destroyed during a Law of conservation of mass
chemical reaction
The breaking of bonds and reform-
ing of new bonds to create new
chemical compounds with different Chemical reaction
chemical formulas and different
chemical properties
synthesis, decomposition,
5 main chemical reactions combustion, single replace-
ment, double replacement
Chemical reaction in which 2 ele-
synthesis
ments combine to form a product
Chemical reaction that is the break-
ing of a compound into component decomposition
parts
This study source was downloaded by 100000844708667 from CourseHero.com on 10-13-2022 03:40:32 GMT -05:00
, The chemical reaction that is the
reaction of a compound with oxy- combustion
gen
Chemical reaction that consists of
an active metal reaction with an
single replacement
ionic compound creating a new
compound
Chemical reaction involving 2 ionic
compounds; the reactant yields double replacement
"switched partners"
how elements are arranged on the
by their chemical properties
periodic table
Number that represents the # of
atomic number
protons an element has
average of the masses of each of
atomic mass
its isotopes as they occur in nature
Mass number - atomic number =
# of neutrons in an element
____________
Columns of the periodic table =
groups
________
Rows of the periodic table =
periods
___________
Group IA = _____ charge +1
Group IIA = ______ charge +2
Group IIIA = ______ charge +3
Group VA = ______ charge -3
Group VIA = ______ charge -2
Group VIIA = ______ charge -1
Charge of noble gases 0
Positively charged ions protons
Negatively charged ions electrons
This study source was downloaded by 100000844708667 from CourseHero.com on 10-13-2022 03:40:32 GMT -05:00
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