chapter 2 review Flashcards

1
Q

average atomic mass

A

f1m1 + f2m2

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2
Q

isotopes

A

number of neutrons vary in an atom, but don’t change the mass

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3
Q

atomic number

A

number of protons

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4
Q

atomic mass

A

number of neutrons + protons

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5
Q

anion

A

gaining electrons (-)

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6
Q

cation

A

losing electrons (+)

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7
Q

oxyanion

A

combo of an element and oxygen
most number of O: per-name-ate
second O: name-ate
third O: name-ite
least O: hypo-name-ite

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8
Q

binary acids

A

hydrogen and non metal
hydro-base-ic acid

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9
Q

oxyacid

A

hydrogen and oxyanion
name oxyanion- ic/ous acid
ate=ic
ite=ous

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10
Q

alkanes

A

carbon and hydrogen in single bonds
prefix (number of C) end in ane

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11
Q

meth

A

1

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12
Q

eth

A

2

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13
Q

prop

A

3

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14
Q

but

A

4

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15
Q

pent

A

5

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16
Q

hex

17
Q

hept

18
Q

oct

19
Q

non

20
Q

dec

21
Q

undec

22
Q

dodec

23
Q

alchols

A

carbon and hydrogen plus -OH group at the end
prefix and end in -anol

24
Q

carboxylic acids

A

carbon and hydrogens ending with -COOH
prefix and end in -anoic acid

25
molar mass
mass of all atoms of an element added together
26
Avogadro's number
6.022x10^23
27
1amu=
g/mol
28
percent composition
(# of element)*(atomic mass)/ (molar mass) x100
29
empirical formula
compound's formula divided by the lowest denominator
30
diatomic elements
Br2, I2, N2, Cl2, O2, F2