Card Set Information
Flashcards from Exam 1 material
two or more atoms attached together
Chemistry is the science that
is the science that seeks to understand the behavior of matter by studying the behavior of atoms and molecules
when similar observations are consistently made, it can lead to a
takes the shape of the container
keeps shape when placed in a container
solids have their particles arranged in an orderly geometric pattern
salt and diamonds
some solids have their particles randomly distributed without any long-range pattern.
Distillation physical proterty
filtration physical property
state of matter (solid liquid gas)
Chromatography physical property
capacity to do work
Celsius to Fahrenheit
1.8 C= F-32
inch to cm
1 inch = 2.54 cm
kg to lbs
1 kg = 2.205 lbs
the value depends on the quantity of
extensive properties cannot be used to identify what type of matter something is
mass and volume
value independent of the quantity of
an indication of how close a measurement comes to the actual value of the quantity
is an indication of how reproducible a measurement is
imprecision in measurements is caused by
inaccuracy in measurement caused
by systematic errors
systematic errors do not average out with repeated measurements because they consistently
cause the measurement to be
either too high or too low
1 in =cm
1 mile = ft
= 5280 ft
1 mL = 1...
1 kg = lb
Remember micro, nano, pico powers
1 m3 = dm3
1 dm3 = cm3 = mL
1000 cm3 = 1000 mL
A chemical formula is comprised of
of element symbols and numerical subscripts. Shows type andnumber of each atom present. (Molecular-Covalent Bonding)
A molecular formula =
(subset of chemical formula) shows the actual
number of atoms of each element in a molecule of the compound.
The molecular formula for hydrogen peroxide is H2O2.
An empirical formula
indicates relative number of atoms of each element in the compound. It is the simplest type of formula with WHOLE NUMBERS.
The empirical formula for hydrogen peroxide is HO.
•A structural formula shows
the number of atoms and the bonds between them, that is, therelative placement and connections of atoms in the molecule.
The structural formula for hydrogen peroxide is H-O-O-H.
tetra, penta, hexa, hepta
8 9 10
octa, nona, deca