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Science Exam
Notes
79
Chemistry
8th Grade
12/17/2008
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Term
Prefix for 1,000
 Definition
kilo
Term
Prefix for 100
 Definition
hecto
Term
Prefix for 10
 Definition
deca
Term
Prefix for 1/10
 Definition
deci
Term
Prefix for 1/100
 Definition
centi
Term
Prefix for 1/1,000
 Definition
milli
Term
K H Da ___ D C M
 Definition
King Henry Died Drinking Chocolate Milk
Term
A substance made up of 2 or more different substances chemically combined
 Definition
compound
Term
The smallest part of an element that still has the characteristics of that element
 Definition
particle
Term
A substance made up of only 1 type of atom
 Definition
element
Term
Instrument used to measure volume
 Definition
graduated cylinder
Term
Matter
 Definition
anything that takes up space
Term
Weight
 Definition
the amount of gravity on an object
Term
Mass
 Definition
the amount of matter in something's space
Term
Sublimation
 Definition
the change of state from a solid to a gas
Term
The formula for Density
 Definition
D=M/V
Term
Liquid
 Definition
a substance with no definite volume or shape
Term
Vaporization
 Definition
when particles in a liquid gain enough energy to form a gas
Term
Chemistry
 Definition
the study of the properties of matter and how matter changes
Term
H
 Definition
Hydrogen
Term
He
 Definition
helium
Term
C
 Definition
carbon
Term
N
 Definition
nitrogen
Term
O
 Definition
oxygen
Term
F
 Definition
flourine
Term
Ne
 Definition
neon
Term
Na
 Definition
sodium
Term
Mg
 Definition
magnesium
Term
Al
 Definition
aluminum
Term
Si
 Definition
silicon
Term
P
 Definition
phosphorus
Term
S
 Definition
sulfur
Term
Cl
 Definition
chlorine
Term
Ar
 Definition
argon
Term
K
 Definition
potassium
Term
Ca
 Definition
calcium
Term
Ti
 Definition
titanium
Term
Cr
 Definition
chromium
Term
Cr
 Definition
chromium
Term
Mn
 Definition
manganese
Term
Fe
 Definition
iron
Term
Co
 Definition
cobalt
Term
Ni
 Definition
nickel
Term
Cu
 Definition
copper
Term
Zn
 Definition
zinc
Term
As
 Definition
arsenic
Term
Br
 Definition
bromine
Term
Ag
 Definition
silver
Term
Sn
 Definition
tin
Term
I
 Definition
iodine
Term
Ba
 Definition
barium
Term
Pt
 Definition
platinum
Term
Au
 Definition
gold
Term
Hg
 Definition
mercury
Term
Pb
 Definition
lead
Term
Rn
 Definition
radon
Term
U
 Definition
uranium
Term
Ductile
 Definition
an element that can be drawn into a wire
Term
An element needed for healthy blood
 Definition
iron
Term
Alloy
 Definition
a metal mixture
Term
Reactivity
 Definition
the ease and speed with which one element combines with another
Term
Malleable
 Definition
metal that can be hammered into flat sheets
Term
The element added to toothpaste and water to prevent tooth decay
 Definition
fluoride
Term
Element used to kill bacteria in the water
 Definition
chluorine
Term
Proton
 Definition
the positively charged particle in an atom
Term
Can tell the number of protons in an atom by the...
 Definition
atomic number
Term
The most dangerous type of radiation is...
 Definition
gamma radiation
Term
Metalloids
 Definition
elements with the characteristics of both metals and non-metals
Term
Noble gases
 Definition
the most stable group of elements
Term
Needed for strong bones
 Definition
calcium
Term
Isotope
 Definition
an element with the same number of protons, but a different number of neutrons
Term
Polar bond
 Definition
a covalent bond in which electrons are shared unequally
Term
Polar bond
 Definition
a covalent bond in which electrons are shared unequally
Term
Polar bond
 Definition
a covalent bond in which electrons are shared unequally
Term
Polar bond
 Definition
a covalent bond in which electrons are shared unequally
Term
Metallic bond
 Definition
occurs between transitional metals
Term
Double bond
 Definition
two atoms share two pairs of electrons
Term
Covalent bond
 Definition
electrons are shared
Term
Triple bond
 Definition
atoms share three pairs of electrons
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