Shared Flashcard Set

Details

Chapter 5,6,7
Lewis Dot, nomenclature, VSEPR theory, chemical bonding, etc.
49
Chemistry
Undergraduate 1
10/16/2013

Additional Chemistry Flashcards

 


 

Cards

Term
Naming monatomic cations
Definition
add -ion to root (e.g. potassium ion)
Term
Naming transition metals with two charges (2 methods)
Definition
add -ous to smaller positive charge
add -ic to greater positive charge
Term
Naming transition metals with two or more charges
Definition
Rewrite the charge of the cation as a roman numeral
Term
Naming monatomic anions
Definition
add -ide
Term
What does an electrically neutral ionic compound mean?
Hint: How do we write ionic compound formulas?
Definition
the positive and negative charges cancel when we do the "butterfly" and add subscript for negative charge to cation and add subscript for positive charge to anion
Term
What does iron (III) sulfide look like?
Definition
Fe_2_S_3_
Term
Two species with the same electron configuration
Definition
isoelectronic
Term
Obvious: the number of bonds an atom can form depends on its
Definition
unpaired electrons (dots)
Term
compound of metal and nonmetal
Definition
ionic
Term
compound of nonmetals or nonmetal and metalloid
Definition
covalent
Term
energy given off when an atom in the gas phase accepts an electron
Definition
electron affinity
Term
is the amount of energy required to convert one mole of a compound in the solid phase to its constituents in the gas phase
Definition
Lattice energy
Term
Lattice energy is directly proportional to what aspect of a compound?
Definition
the compound's stability
Term
Octet rule only applies to
Definition
group 1 and 2
Term
Order of bond strength
Definition
single<double<triple (duh!)
Term
two methods of checking lewis dot structure (without F/C)
Definition
-Matches original # of Val electrons
-every atom obeys octet rule
Term
Calculating Formal charge
Definition
total original # of e - lone pair - 1/2 of bonding e
Term
resonance
Definition
similar formal charges between lewis structures
Term
In a lewis structure, atoms with unpaired electrons are called
Definition
radicals or free radicals
Term
when drawing L.S., which atom goes in center?
Definition
least electronegative one
Term
exception to octet rule: having more than 8 valence electrons
Definition
expanded octet
see XeF_6_
Term
Lattice energy is directly proportional to (1) and indirectly proportional to (2)
Definition
(1) |charge| on either atom
(2) (sum of atomic radiuses)^2
Term
Naming acids for non oxygen compounds
Definition
Hydro- root of anion -ic
Term
different samples of a given compound always contain the same elements in the same mass ratio.
Definition
Law of definite proportions
Term
molecules that contain two atoms
Definition
diatomic molecules
Term
diatomic molecules of same atom
Definition
homonuclear
Term
diatomic molecules of different atom
Definition
heteronuclear
Term
one of two or more distinct forms of an element. e.g. carbon as diamond vs as graphite e.g. P_2_ vs P_4_
Definition
allotrope
Term
compounds composed of two elements
Definition
binary compounds, also known as heteronuclear diatomic molecule
Term
(1) penta
(2)hepta
Definition
(1) 5
(2) 7
Term
Exceptions to naming: some "ionic" compounds are actually covalent and can be named ionically or covalently. Give two examples:
Definition
SnCl_4_
PbCl_4_
Term
one of two or more distinct forms of an element
Definition
acid
Term
the simplest organic compounds are called ... and contain ...
Definition
hydrocarbons
hydrogen and carbon
Term
Nonmenclature for alkanes is determined by
Definition
number of carbon atoms
Term
CH4
Definition
methane
Term
C_2_H_6_
Definition
Ethane
Term
C_3_H_8_
Definition
propane
Term
C_4_H_10_
Definition
Butane
Term
atoms that replace one of the hydrogen ions in alkanes
Definition
function group
Term
what is the name of the functional group: -OH
Definition
alcohol
Term
what is the name of the functional group:
-CHO
Definition
aldehyde
Term
what is the name of the functional group:
-COOH
Definition
carboxylic acid
Term
what is the name of the functional group:
-NH_2_
Definition
amine
Term
True/False : ionic compounds do not exist as molecules
Definition
True, an ionic compound is made up of ions that are attracted to each other because of opposite charges. Molecules are neutral as they bond to each other via sharing of electrons
Term
Since ionic compounds are not molecules, the term "molecular mass" can only be applied towards ...
When calculating mass of ionic compounds, use ...
Definition
covalent compounds
formula mass
Term
polyatomic ions that contain oxygen
Definition
oxoanions
Term
When dissolved in water ... will produce hydrogen ions and the corresponding oxoanions
Definition
oxoacids
Term
How to derive formula of an oxoacid?
Definition
add H+ ions until compound is neutral
Term
three rules for naming oxoacids
Definition
1. -ate ion -> -ic acid
2. -ite ion -> -ous acid
3. oxoanion prefixes are kept
Supporting users have an ad free experience!