formulae & reaction quantities
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20 Terms
1
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valency rule
symbol
valency
swap
divide
formula
valency
swap
divide
formula
2
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prefix rule
mon- 1
di- 2
tri- 3
tetra- 4
penta- 5
hexa- 6
di- 2
tri- 3
tetra- 4
penta- 5
hexa- 6
3
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ide
2 atoms present (except hydroxide * OH)
4
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ite & ate
oxygen also present
5
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Roman Numerals
I-1
II-2
III-3
IV-4
V-5
VI-6
II-2
III-3
IV-4
V-5
VI-6
6
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how to tell valency on group ions
on the charge
7
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ionic formula
write the chemical formula with charges
8
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chemical equations
*ionic-(aq)
*diatomic-(2) but only by itself
(s)solid
(l)-liquid
(g)-gas
do valency rule
*diatomic-(2) but only by itself
(s)solid
(l)-liquid
(g)-gas
do valency rule
9
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gfm
add together the RAM of each element
10
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calculation triangle 1
n,m,gfm
11
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calculation triangle 2
n,c,v
12
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% composition
m/gfm x 100
13
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mass(g)
n x GFM
14
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n(moles)
m/GFM
15
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GFM(g)
n/m
16
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N(moles)
c x v
17
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c(mol-1)
n/v
18
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v(cm3)(l)
n/c
19
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convert cm3 in l
divide by 1000
20
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only add charges
when it asks for ionic formula