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final for chemistry Flashcards

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1
Q

always change the temperature to

A

Celcius to Kelvins (273.15)

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2
Q

water specific heat

A

4184 j/kg * C

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3
Q

half life

A

grams (1/2)^t/T

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4
Q

molarity

A

mole solute/liters solute

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5
Q

diluted equation

A

M1V1=M2V2

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6
Q

percent by mass of molarity

A

grams solute/grams solution *100

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7
Q

boyle’s law

A

P1V1=P2V2

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8
Q

charles’ law

A

V1/T1=V2/T2

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9
Q

gay’s law

A

P1/T1=P2/T2

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10
Q

combined’s law

A

P1V1/T1=P2V2/T2

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11
Q

ideal gas law

A

PV=nRT (0.0821)

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12
Q

percent mass of element in compound

A

mass of element/mass of whole compound *100

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13
Q

synthesis

A

A+B = AB

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14
Q

decomposition

A

AB = A + B

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15
Q

single displacement (metal)

A

A + BC = B + AC

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16
Q

single displacement (nonmetal)

A

A + BC = C + BA

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17
Q

double displacement

A

AB + CD = AD + CB

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18
Q

names for numbers prefix

A

mono, di, tri, tetra, penta, hexa, hepta, octa, Nona, deca

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19
Q

density

A

mass * volume

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20
Q

atomic # is equal to

A

number of protons and electrons

21
Q

mass # is equal to

A

number of protons + number of neutrons

22
Q

real gases become ideal when

A

high temperatures and low pressure

23
Q

numbers to remember for measurements

A

760 torr
760 mm Hg
14.7 psi
101325 Pa
101.325 KPa

24
Q

boiling point

A

100 C

25
Q

melting point

A

0 C

26
Q

grams and moles can

A

convert into each other

grams cannot convert to molecules

27
Q

moles and molecules can

A

convert into each other
(6.022 * 10^23)

28
Q

nonpolar

A

equal
0 to 0.4

29
Q

polar

A

uneven
0.4 to 2.0

30
Q

109.5

A

4 electron group
sp^3

31
Q

120

A

3 electron group (curving)
sp^2

32
Q

180

A

2 electron group (straight)
sp

33
Q

4 electron group

A

tetrahedral/pyramidal/bent

34
Q

3 electron group

A

trigonal planar/bent

35
Q

2 electron group

A

linear

36
Q

yield percentage

A

actual yield/theoretical yield *100

37
Q

heat conversions

A

Q= mcT
Q= nHfus
Q= nHvap

38
Q

special decompositions (CO3 and ClO3)

A

CaCO3 = CO2 + CaO
2Al(ClO3)2 = 2ACl3 + 9O2

39
Q

atomic radius

A

gets bigger when going down and left

40
Q

electronegativity

A

gets higher when going up and right (not including noble gases)

41
Q

electron affinity

A

gets higher when going up and right (not including noble gases)

42
Q

ionization energy

A

gets higher when going up and right

43
Q

electron configruation

A

s2, p6, d10, f14

44
Q

when rounding, but the number will not be to the place needed (it goes higher instead) then…

A

use exponential form

ex) round 897 to tens place

a) 9.0 * 10^2

45
Q

london dispersion force

A

2 asymmetrical (weak

46
Q

hydrogen bond

A

N-H, O-H, F-H, (strongest)

47
Q

dipole dipole

A

polar molecules (medium strength)

48
Q

derived units

A

amount, length, mass, time, electric current, temperature, light intensity

49
Q

VSEPR

A

Valence Shell Electron Pair Repulsion

chemistry (5 decks)

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