Midterm

density of water with units
1 g/mL
closeness to true value
accuracy
reproducible measurements
precision
boiling in f
212
boiling in c
100
boiling in k
373.15
freezing in f
32
freezing in c
0
freezing in k
273.15
body temp in f
98.6
body temp in c
37
body temp in k
310
abs 0 in f
-460
abs 0 in c
-273.15
abs 0 in k
abs 0
change in the form of a substance, not in chemical composition
physical change
changes a substance’s composition, cannot changed back
chemical change
same throughout (ex: water)
homogenous
visibly distinguishable parts (ex: blood)
heterogenous
who derived the law of conservation of mass, father of modern chemistry, and wrote the first modern chem textbooks
Lavoisier
invented x rays
Roentgen
method for separating the components of a liquid mixture that depends on differences in the ease of vaporization of the components
distillation
exa E
10^18
peta P
10^15
tera T
10^12
giga G
10^9
mega M
10^6
kilo k
10^3
hecto h
10^2
deka da
10
deci d
10^-1
centi c
10^-2
milli m
10^-3
micro u
10^-6
nano n
10^-9
pico p
10^-12
femto f
10^-15
atto a
10^-18
substance that cannot be decomposed into simpler substances
element
substance with constant composition that can be broken down into elements by chemical processes
compound
1mL=
1cm^3
ethylene gylcol
antifreeze
length,
meter
kg
mass
second
time
ampere
electric current
kelvin
temp
andela
luminous intensity
mol
amount of a substance
who performed the old drop experiment and calculated the mass of an electron to be 9.11×10^-31kg?
Thomson
who used the gold foil experiment to discover the positively charged nucleus of the atom
Rutherford
give and take of electrons
ionic bond
sharing of electrons
covalent bond
vertical column, same valence electrons
group
horizontal elements on pt
period
atoms of same element (same protons but diff numb of neutrons)
isotope
numb of protons in nucleus of atom
atomic number
numb of protons and neutrons in nucleus
mass number
properties that do depend on the amount of the substance present (ex: mass, weight, volume, length)
extensive physical property
properties that don’t depend on the amount of substance present (ex: color, density, boiling point)
intensive physical property
helium-4 nucleus (4/2 He)
alpha
high speed electron (0/-1e-, B)
beta
high energy photon (excess energy)
gamma
antiparticle of the electron
positron
terms for each isotope of an atom
nuclide
protons and neutrons found in nucleus, code name
nucleon
negative ion (nonmetals)
anion
positive ion (metals)
cation
charge of electron w units
1.602x 10^-19 Coulombs
the closer the proton to neutron ration, the _______
less radioactive the nuclide is
what is used to study the thyroid?
iodine
what is used to study the red blood cells
iron
what is used to study the heart muscle after a heart attack?
thallium
name for group 1
alkali metals
name fro group 2
alkaline earth metals
name for group 7
halogens (salt formers)
name for group 8
noble gases
mass of proton
1.673×10^-27kg
mass of neutron
1.675×10^-27
mass of electron
9.11×10^-31
unequal sharing of electrons
polar
equal sharing of electrons
nonpolar
substance that produces OH ions in an aqueous solution, proton acceptor
base
loss of electrons
oxidation
gained electrons
reduction
Molarity formula
moles solute/liters solution
Sb-Antimony
stibium
Hg-Mercury
Hydragyrum
K-Potassium
Kallium
Pb-Lead
Plumbum
Fe-Iron
Ferrum
Au-Gold
Aurum
Ag-Silver
Argentum
Sn-Tim
Stannum
Na-Sodium
Natrium
W-Tungsten
Wolfram
x

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