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Flashcards in Lewis Structure Quiz Deck (13):
1

types of formulas

molecular- tells the ratio of the elements in a compound (covalent compound)

empirical- tells the ratio of the elements in a compound (ionic mainly, also covalent)

structural formula- pictures of where all the atoms are; allow us to predict how molecules behave; includes Lewis structures

2

special rules for oe-

Be = 2 oe-
H = 2 oe-
B = 6 oe-

3

acids with oxygen

(prefix based on anion) + (suffix: if ate then ic, if ite then ous) acid

4

acids without oxygen

(hydro) + (something I think based on cation) acid

5

examples, give the chemical name:
H2SO4
H2S
H3PO4

sulfuric acid
hydrosulfuric acid
phosphoric acid

6

examples, give the chemical name:
HF
HNO2
H3P

hydrofluoric acid
nitrous acid
hydrosulfuric acid

7

prefixes for ionic bonds:
1
2
3
4
5
6
7
8
9
10

mono (only for O, only when it is the 2nd element)
di
tri
tetra
penta
hexa
hepta
octa
nona
deca

8

naming ionic bonds

1st word = name of the 1st element
2nd word = name of teh 2nd element +ide

9

the diatomic elements

H2
N2
O2
F2
Cl2
Br2
I2

10

chemical exceptions

water = H2O
methane = CH4
ammonia = NH3

11

how to find the charge of an atom in a compound

determine the # of e- that the atom of interest owns (1 per bond, 2 per lone pair)and plug into the equation:

charge on atom= ve - #owned when bonded

12

vsepr

Valence Shell Electron Pair Repulsion:
the shapes of covalent molecules are determined by the repulsion of the bonding and lone pair e-

13

resonance structures

the different valid Lewis structures that you can write for a compound where all of the atoms are in the same place (only e- and bonds can move); the true structure of a molecule is an average of the resonance structures