Avogadro's Law works as long as

Pressure and Temperature are constant

The electron affinity down a group

Decreases, Becomes less exothermic

Structural isomers have

The same molecular formula but different structural

A polar bond arises when

Two atoms have different electronegativities

Dissociates completely in aqueous solution

Oxidation is defined as

Loss of hydrogen, gain of oxygen, loss of electrons

Enthalpy change is not dependent on the pathway used

An empirical formula is

Simplest whole number ratio of elements present in compounds

What grade will I get on this final?

An A!!!!!!, An A :/, An A!, An A?

An example of the use of green chemistry is

Use safer substances, Prevent waste production

Increasing the temperature increases the rate of reaction because

Particles collide with greater energy, Particles collide more frequently

Biochemical oxygen demand is used to measure the quality of water. The lower the BOD

The lower the water pollution is

A line emission spectrum shows

Only certain wavelengths/frequencies of light

The reaction must proceed to the left toward equilibrium

What is the definition of on amphiprotic?

A species that can donate or accept a proton

The reaction hardly proceeds toward the reactants, The reaction proceeds totally toward the products

The position of equilibrium shifts to

Decrease the effect of the change, Minimize the effect of the change

Resonance Structures have

Different locations for double bond and lone pairs

Anode is negative and cathode is positive

Collision theory states that for a reaction to occur particles must

Collide with minimum energy in correct orientation

Enthalpy of formation is

Sum of bonds broken minus sum of bonds made

Increasing temperature on an exothermic reaction

Decreases Kc and shifts equilibrium in endothermic direction

Acid Deposition is caused by

Nitrogen oxides and sulfur oxides

Hund's Rule states that

Electrons fill orbitals of the same energy

An oxygen doubled bonded to a carbon bonded to an oxygen

Coordinate (dative) Covalent Bonds have

Both electrons come from the same atom

Lipids become rancid through

Hydrolytic or oxidative processes

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IB Chemistry Final

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A study guide on the chapters being tested upon for the IB Chemistry SL Final

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Questions 50

Answers

1
An example of a strong base is
NH3(aq)
HCl(aq)
CH3COOH(aq)
NaOH(aq)
2
A homogeneous mixture is separated by
Physical means (distillation)
Mechanical means (filtration)
3
Isotopes have
Everything the same
Different numbers of protons
Different numbers of neutrons
Different numbers of electrons
4
Avogadro's Law works as long as
Temperature is constant
Pressure and Temperature are constant
Pressure is constant
Nothing is constant
5
The electron affinity down a group
Increases
Decreases
Stays the same
Becomes less exothermic
6
Structural isomers have
Different molecular formula and different structural
The same molecular formula but different structural
Different molecular formula and same structural
The same molecular formula and same structural
7
Retardation factor is used to
Identify carbohydrates present
Identify proteins present
Identify lipids present
Identify amino acids present
8
A polar bond arises when
Two atoms have the same electronegativity
Two atoms have different electronegativities
Two atoms have the opposite electronegativities
9
Not a step in free radical substitution
Initiation
Termination
Propagation
Substitution
10
When KI(aq) reacts with Cl₂ this occurs
A brown solution
A green solution
An orange solution
No reaction
11
A peak in a mass spectrometer represents
An individual isotope
An element
A mixture
12
In peroxide the oxidation state of oxygen is
+1
0
-1
-2
13
A strong acid
Ionizes completely in aqueous solution
Dissociates completely in aqueous solution
Ionizes partially in aqueous solution
Dissociates partially in aqueous solution
14
Oxidation is defined as
Gain of hydrogen, gain of oxygen, gain of electrons
Loss of hydrogen, gain of oxygen, loss of electrons
Loss of hydrogen, loss of oxygen, gain of electrons
Gain of hydrogen, loss of oxygen, gain of electrons
15
Hess's Law states
Enthalpy change is dependent on the pathway used
Enthalpy change is related to the pathway used
Enthalpy change is not dependent on the pathway used
16
An empirical formula is
The total number of atoms present in molecule of a compound
Simplest whole number ratio of elements present in compounds
The simplest ratio of elements present in a compound
17
An ionic bond usually occurs between
Two non-metals
A metal and a non-metal
Two metals
18
The length of covalent bonds look like
Single < double < triple
Triple > single > double
Single > double > triple
Double < triple < single
19
The emission spectrum for hydrogen is
A line spectrum
A continuous spectrum
20
The limiting reactant
Produces less moles of product
Produces the same number of moles of product
Produces more moles of product
21
What grade will I get on this final?
An A!!!!!!
An A :/
An A!
An A?
22
An example of the use of green chemistry is
Use safer substances
Grow more food
Prevent waste production
Design more dangerous substances
23
Hydrogen bonding occurs between
H, N, C, and F
H, O, C, F
H, C, O, N, and F
H, N, O and F
24
A secondary alcohol is oxidised to
A ketone
A ester
An aldehyde
A carboxylic acid
25
Increasing the temperature increases the rate of reaction because
Particles move faster
Particles collide with greater energy
Particles collide more frequently
26
These vitamins are soluble in water
Vitamin C
All three
Vitamin A
Vitamin D
27
Within any main energy level the ordering of sub levels is always
s<p<d<f
p<d<s<f
f<d<p<s
s<d<p<f
28
Biochemical oxygen demand is used to measure the quality of water. The lower the BOD
Is unrelated to water pollution
The lower the water pollution is
The greater the water pollution is
29
A line emission spectrum shows
All frequencies/wavelengths of light present
Only certain wavelengths/frequencies of light
30
If Q > K_c
The reaction must proceed to the left toward equilibrium
The reaction must proceed to the right toward equilibrium
The reaction is at equilibrium
31
What is the definition of on amphiprotic?
Any substance that can act as both an acid and a base
A species that can donate or accept a proton
32
If K_c >> 1
The reaction proceeds toward the reactants
The reaction hardly proceeds toward the products
The reaction hardly proceeds toward the reactants
The reaction proceeds totally toward the products
33
The position of equilibrium shifts to
Decrease the effect of the change
Minimize the effect of the change
Increase the effect of the change
Maximize the effect of the change
34
Resonance Structures have
Different locations for a double bond
No difference
Different locations for lone pairs
Different locations for double bond and lone pairs
35
In a voltaic cell
Anode is negative and cathode is negative
Anode is positive and cathode is negative
Anode is negative and cathode is positive
Anode is positive and cathode is positive
36
Collision theory states that for a reaction to occur particles must
Collide in correct orientation
Collide with minimum energy in correct orientation
Collide with minimum energy
Collide with no particular orientation or energy
37
Using VSEPR theory, what is the bond angle for a trigonal pyramidal molecule
104.5
107
109.5
105
38
Enthalpy of formation is
Sum of bonds broken minus sum of bonds made
Sum of bonds made plus sum of bonds broken
Sum of bonds made minus sum of bonds broken
Sum of bonds broken plus sum of bonds made
39
The radii of _____ ions are smaller than their atomic raddi
Negative ions
Positive ions
Neutral ions
40
The two exceptions to the Aufbau principle are
Copper and Cobalt
Chromium and Copper
Nickel and Platinum
Chromium and Cobalt
41
Covalent bonding occurs when atoms
Share electrons
Give up electrons
Receive electrons
42
Increasing temperature on an exothermic reaction
Decreases Kc and shifts equilibrium in endothermic direction
Decreases Kc and shifts equilibrium in exothermic direction
Increases Kc and shifts equilibrium in endothermic direction
Increases Kc and shifts equilibrium in exothermic direction
43
Acid Deposition is caused by
Nitrogen oxides and sulfur oxides
Carbon oxides and sulfur oxides
Carbon oxides, nitrogen oxides, and sulfur oxides
Carbon oxides and nitrogen oxides
44
Hund's Rule states that
The maximum number of electrons in an orbital is two
The highest energy electrons are removed first to form ions
Orbital diagrams show the electrons as single headed arrows
Electrons fill orbitals of the same energy
45
An ester contains
An oxygen double bonded to a carbon
A carbon bonded to an oxygen bonded to a carbon
An oxygen double bonded to a carbon bonded to a hydrogen
An oxygen doubled bonded to a carbon bonded to an oxygen
46
In a homologous series the members differ by
A common structural unit
A structural group
The types of atoms involved
47
Coordinate (dative) Covalent Bonds have
Both electrons come from the same atom
Two electrons coming from different atoms
Two electrons from different elements
48
Secondary bonding in proteins is determined by
Electrostatic interactions
London forces
Disulfide bridges
Hydrogen bonding
49
The _______ indicates the number of shells
Energy level
Period number
Shell number
Group number
50
Lipids become rancid through
Neither hydrolytic nor oxidative processes
Hydrolytic or oxidative processes
Only oxidative processes
Only hydrolytic processes

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