Shared Flashcard Set

Details

Chapter 1 form chem 1303
review for final
92
Chemistry
Undergraduate 1
12/08/2014

Additional Chemistry Flashcards

 


 

Cards

Term
Chemistry
Definition
The study of matter and changes it undergoes
Term
macroscopic
Definition
things we can touch (seen by naked eye)
Term
microscopic
Definition
things we can imagine and measure with modern technology (cannot be seen with only the naked eye)
Term
Scientific Method
Definition
Systematic approach to research (to figuring things out)
Term
Law
Definition
a concise verbal or mathematical study of the relationship between phenomena that are always the same under the same conditions
Term
Theory
Definition
unifying principle that explains a body of facts and the laws that are based on those facts
Term
Hypothesis
Definition
tentative explanation for a set of observations; leads to "if-when" questions; test of theory
Term
Matter
Definition
anything that occupies space and has mass
-->all matter is made up of chemicals
Term
mixture
Definition
combination of 2 or more substances in which the substances retain distinct identities (air, milk, cement, tea, coffee)
Term
Homogeneous mixture
Definition
same composition throughout (sugar in water, tea)
Term
Heterogeneous mixture
Definition
non-uniform composition (sand + iron filings)
Term
substance
Definition
form of matter that has a definite or constant composition and distinct properties (H2O, NH3, sugar, gold...)
Term
elements
Definition
substance that cannot be separated into simpler elements by chemical means
Term
Al
Definition
Aluminum
Term
As
Definition
Arsenic
Term
Ba
Definition
Barium
Term
Br
Definition
Bromine
Term
Ca
Definition
Calcium
Term
C
Definition
carbon
Term
Cl
Definition
Chlorine
Term
Cr
Definition
Chromium
Term
Co
Definition
cobalt
Term
Cu
Definition
copper
Term
F
Definition
Fluorine
Term
Au
Definition
Gold
Term
H
Definition
hydrogen
Term
I
Definition
Iodine
Term
Fe
Definition
iron
Term
Pb
Definition
lead
Term
Mg
Definition
Magnesium
Term
Mn
Definition
manganese
Term
Hg
Definition
mercury
Term
Ni
Definition
nickel
Term
N
Definition
nitrogen
Term
O
Definition
oxygen
Term
P
Definition
Phosphorus
Term
Pt
Definition
platinum
Term
K
Definition
potassium
Term
Si
Definition
silicon
Term
Ag
Definition
silver
Term
Na
Definition
sodium
Term
S
Definition
sulfer
Term
Sn
Definition
Tin
Term
W
Definition
Tungsten
Term
Zn
Definition
zinc
Term
Compounds
Definition
substance composed of atoms of 2 or more elements chemically united in fixed proportions
Term
Physical property
Definition
can be measured and observed without changing the composition or identity of a substance
Term
Chemical Property
Definition
requires a chemical change in order to be observed
Term
Extensive Property
Definition
depends on the amount of material, Ex: mass and volume
Term
Intensive property
Definition
does not depend on the amount, EX: temperature and density
Term
tera-
Definition
T
1,000,000,000,000
10^12
1 terameter(Tm)= 1 X 10^12 m
Term
giga-
Definition
G
1,000,000,000
10^9
1 gigameter (Gm)= 1 x 10^9
Term
mega-
Definition
M
1,000,000
10^6
1 megameter (Mm)= 1 x 10^6
Term
kilo-
Definition
k
1,000
10^3
1 kilometer (km)= 1 x 10^3 m
Term
deci-
Definition
d
1/10
10^-1
1 decimeter (dm)= 0.1 m
Term
centi-
Definition
c
1/100
10^-2
1 centimeter (cm)= 0.01 m
Term
milli-
Definition
m
1/1000
10^-3
1 millimeter (mm)= 0.001 m
Term
micro-
Definition
µ
1/1000,000
10^-6
1 micrometer (µm)= 1 x 10^-6 m
Term
nano-
Definition
n
1/1,000,000,000
10^-9
1 nanometer (nm)= 1 x 10^-9 m
Term
pico-
Definition
p
1/1,000,000,000,000
10^-12
1 picometer (pm) = 1 x 10^-12 m
Term
1 inch = _____ cm
Definition
2.54 cm
Term
1 m= ______ inches
Definition
39.37 inches
Term
1 kg = ______ lb
Definition
2.205 lb
Term
1 lb = _______ g
Definition
454 g
Term
1 L = ______ qt
Definition
1.057 qt
Term
1 gal = ____ L
Definition
3.786 L
Term
1000 cm^3 = ______ mL
Definition
1000
Term
1000 mL= _______ dm^3
Definition
1
Term
1 dm^3 = _______mL
Definition
1000
Term
1000 mL= _______ L
Definition
1
Term
1 cm^3 = ______ mL
Definition
1
Term
density formula
Definition
d= mass/volume

usually g/cm^3 or g/mL
Term
specific gravity
Definition
density of substance/ density of water

a dimensionless quantity
Term
˚C---> ˚F
Definition
˚F= (9/5)˚C +32
Term
˚F---> ˚C
Definition
˚C= (5/9) (˚F- 32)
Term
˚C---> K
Definition
K= ˚C + 273.15
Term
boiling point of water
a) Kelvin
b) ˚C
c) ˚F
Definition
a) 373 K
b) 100˚C
c) 212˚ F
Term
Body temperature
a) Kelvin
b)˚C
c)˚F
Definition
a) 310 K
b) 37˚C
c) 98.6˚F
Term
Room Temperature
a) Kelvin
b) ˚C
c) ˚F
Definition
a) 298 K
b) 25˚C
c) 77˚F
Term
Freezing point of water
a) K
b) ˚C
c) ˚F
Definition
a) 273 KK
b) 0˚C
c) 32˚F
Term
Sig Fig rule for multiplication and division
Definition
look for factor with the fewest # of sig figs
Term
Sig Fig rule for addition and subtraction
Definition
look for value with fewest # of decimal places
Term
Significant Figures
Definition
# of "significant figures" shows degree of uncertainty in measurement
Term
accuracy
Definition
how close to the "true" value?

systematic errors
Term
precision
Definition
how reproducible is the measurement?

random errors
Term
Exact numbers
Definition
values that are exactly counted or defined can be assumed to have an infinite number of sig figs,

EX: 25 people or 1 foot= 12 inches
Term
1 foot= _____ inches
Definition
12
Term
1 inch = _____ cm
Definition
2.54
Term
1 mi= ______ ft
Definition
5280
Term
1 gal= _____ L
Definition
3.786
Supporting users have an ad free experience!