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

24
Q

Displacement

25
How do you calculate percentage yield
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
Boyles law
Pressure and volume are inversely proportional | P1V1=P2V2
27
Charles law
Volume of gas is directed proportional to temperature V1. v2 T1 =T2
28
Graham's law
Diffusion= high to low concentration Effusion=gas moved through small opening Larger molar mass slower gas moves
29
How to find percentage mass
Solute divided by whole solution
30
How do you find volume when given first temp first vol and second temp
Divide volume in liters by temp in kelvin and set that fraction equal to X divided by the second temp in kelvin
31
When original volume and second volume and pressure hoe do you find original pressure
Original volume in L times X= second pressure in atm times second volume in L
32
How do you find molality
Moles over Kg
33
Atomic radius
Half the distance between nuclei of adjacent atoms Decreases left to right Increase bottom to top
34
Pv=nrt
``` P=atm V=L N=moles R=.082 T=kelvin ```
35
Molality
Moles over L
36
Sublimation
Solid to gas
37
Deposition
Gas to solid
38
Entrophy
Measure of disorder S
39
Condensation
Gas to liquid
40
If a reaction gives off heat is the value of H positive or negative
Negative | Exothermic
41
How do you do problems with titration
M1 V1( in L)=M2 V2
42
Arrhenius definition
Acid-> anything that increases in h+ concentration | Base-> anything that increases on oh- concentration
43
Brindled Lowry
Acids-> donate proton h+ | Base-> accept proton h+
44
Conjugate acid
Accepts proton
45
Triple pt
All stages exist
46
Critical pt
Point at which molecules have to much kinetic energy to stick together
47
Calculate H enthalpy
(H products)-(H reactants)
48
How to calculate G fee energy change
H-TS all delta except temp