Final Flashcards

1
Q

Electron shielding

A

Electrons in inner energy level block outer electrons from full nuclear charge

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2
Q

Ionization energy

A

Tendency of an atom to lose electrons
Increases left to right
Decreases top to bottom

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3
Q

Electronegativity

A

Tendency of an atom to attract bonding electrons to ingest and decreased top to bottom

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4
Q

Isoelectronic

A

Having the same electron configuration as another atom

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5
Q

Diatomic molecules

A

N o f cl br I

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6
Q

What is a lone pair

A

Pairs of electrons not included in bonding

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7
Q

How many electrons are shares in a single vs triple bond

A

Single bond: 2

Triple bond: 6

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8
Q

What type of bonding exists in diatomic molecules

A

Covalent

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9
Q

How does the electronegative the difference between two elements relate to the type of bonding that exists between them

A

The larger the elctronegativity difference the greater the fist ace in charge

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10
Q

2,0

A

Linear

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11
Q

2,1 or 2

A

Bent

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12
Q

3,0

A

Trigonal planar

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13
Q

3,1

A

trigonal pyramidal

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14
Q

4,0

A

Tetrahedral

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15
Q

Alkane

A

Single bonds between carbons

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16
Q

Alkene

A

Double bonds between carbons

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17
Q

Alkyne

A

Triple bonds between Carbons

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18
Q

Alcohol

A

OH

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19
Q

How do you find percent composition

A

Find molecular mass for each element and divide by all elements mass together

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20
Q

How do you find molecular mass

A

Find grams per mile for each element and add together

21
Q

How to you find molecular formula

A
Take percents
Divide by grams per mol
Divide by smallest number=emperical
Divide experimental molar mass by regular molar mass 
Multiple number by emperical
22
Q

Synthesis

A

Add together

23
Q

Decomposition

A

Separate

24
Q

Displacement

A

Switch

25
Q

How do you calculate percentage yield

A

Use stoicheometry to find how many grams of compound whose yeild you are trying to find
Divide the actual yeild by how many grams where found (theoretical yeild)
Multiply by 100

26
Q

Boyles law

A

Pressure and volume are inversely proportional

P1V1=P2V2

27
Q

Charles law

A

Volume of gas is directed proportional to temperature
V1. v2
T1 =T2

28
Q

Graham’s law

A

Diffusion= high to low concentration
Effusion=gas moved through small opening
Larger molar mass slower gas moves

29
Q

How to find percentage mass

A

Solute divided by whole solution

30
Q

How do you find volume when given first temp first vol and second temp

A

Divide volume in liters by temp in kelvin and set that fraction equal to X divided by the second temp in kelvin

31
Q

When original volume and second volume and pressure hoe do you find original pressure

A

Original volume in L times X= second pressure in atm times second volume in L

32
Q

How do you find molality

A

Moles over Kg

33
Q

Atomic radius

A

Half the distance between nuclei of adjacent atoms
Decreases left to right
Increase bottom to top

34
Q

Pv=nrt

A
P=atm
V=L
N=moles
R=.082
T=kelvin
35
Q

Molality

A

Moles over L

36
Q

Sublimation

A

Solid to gas

37
Q

Deposition

A

Gas to solid

38
Q

Entrophy

A

Measure of disorder S

39
Q

Condensation

A

Gas to liquid

40
Q

If a reaction gives off heat is the value of H positive or negative

A

Negative

Exothermic

41
Q

How do you do problems with titration

A

M1 V1( in L)=M2 V2

42
Q

Arrhenius definition

A

Acid-> anything that increases in h+ concentration

Base-> anything that increases on oh- concentration

43
Q

Brindled Lowry

A

Acids-> donate proton h+

Base-> accept proton h+

44
Q

Conjugate acid

A

Accepts proton

45
Q

Triple pt

A

All stages exist

46
Q

Critical pt

A

Point at which molecules have to much kinetic energy to stick together

47
Q

Calculate H enthalpy

A

(H products)-(H reactants)

48
Q

How to calculate G fee energy change

A

H-TS all delta except temp