Edward Joseph Snowden (born June 21, 1983) is an American computer professional,
former Central Intelligence Agency (CIA) employee, and former contractor for the United States
government, who copied and leaked classified information from the National Secu
How Can a Person Win Back Legal Custody of Their Children?
Losing custody of your child is a heart-wrenching experience for any parent. Its a
difficult thing to accept that the court believes your children are better off with
someone else- whether that pe
etting up a representative office in China is an option that is becoming more and
more popular for foreign companies that would like a presence in China. Although
the services that can be provided by a representative office are rather limited, a
Compounds containing variable oxidation number
metals are named with Roman numerals in parentheses following the
name of the metal and indicating the oxidation number of the metal.
Vocabulary Anion: An ion with a negative charge.
with a po
minimizing electron-pair repulsion.
Molecular geometry: The
specific three-dimensional arrangement of atoms in molecules.
and scientific notation by scientists. In scientific notation, very large
and very small numbers are expressed as the product of a number
between 1 and 10 multiplied by some power of 10. The number
9,000,000 for example, can be written as the product of 9
25) What are polyatomic ions?
Name each of the following ions. 26) NO3- 27) C2H3O228) OH29) PO4330) SO3231) CO3284
4.4: Writing Ionic Formulas Objectives Write the correct formula for
an ionic compo
10) Water, H2O
. . HOH
11) Ammonia, NH3
12) Methane, CH4
For each of the following, indicate which of the compounds in the pair
has the given property. 13) higher melting point:
methane 14) higher boiling
and relationships to a base unit are shown below. 1 micrometer = 1
m = 1x10-6 m 1 microliter = 1 L = 1x10-6 L 1 kilometer = 1 km =
1x103 m 1 kilogram = 1 kg = 1x103 g
SI Units The International System of Units, abbreviated SI from the
French Le Systme Int
however, the different types of atoms are always present in the same
2,500 years ago, Democritus suggested that all
matter in the universe was made up of tiny, indivisible, solid objects he
Other Greek philo
than polar-polar attraction.
Hydrogen bonding occurs between
molecules in which a hydrogen atom is bonded to a very
electronegative fluorine, oxygen, or nitrogen atom. Compounds with
hydrogen bonding tend to have higher melting points, higher boiling
Therefore, the slope of the line is 0.005 atm/K. The fact that the slope
is positive indicates that the line is rising as it moves from left to right
and that the pressure increases by 0.005 atm for each 1 Kelvin
increase in temperature. A ne