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Study sets matching "oxidation redox reactions"

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Study sets matching "oxidation redox reactions"

33 terms
Oxidation Numbers & Redox Reactions
The oxidation number of an element ind…
Main rules for assigning oxidation num…
O.N. of oxygen in CO₂?
O.N. of carbon in CO₂
The number of electrons lost, gained, or shared as a result o…
1. For elements O.N. = 0... Mg, Cl₂, Ne, S, N₂... 2. For Simple Ion…
-2
+4
The oxidation number of an element ind…
The number of electrons lost, gained, or shared as a result o…
Main rules for assigning oxidation num…
1. For elements O.N. = 0... Mg, Cl₂, Ne, S, N₂... 2. For Simple Ion…
13 terms
Oxidation Numbers (Redox Reactions)
NO₃⁻
CrO₄²⁻
OH⁻
NO₂⁻
N=+5... O= ⁻2
Cr = +6... O= ⁻2
H = 1... O= ⁻2
N = +3... O= ⁻2
NO₃⁻
N=+5... O= ⁻2
CrO₄²⁻
Cr = +6... O= ⁻2
13 terms
Oxidation-Reduction (Redox) Reactions
Oxidation-Reduction Reactions
What happens in a Oxidation-Reduction…
Oxidation Number
How would this happen?
Also known as Redox Reactions
Electrons are transferred from one reactant to another and th…
Also known as Oxidation State
If all shared electrons were assigned to the atom with a grea…
Oxidation-Reduction Reactions
Also known as Redox Reactions
What happens in a Oxidation-Reduction…
Electrons are transferred from one reactant to another and th…
10 terms
Oxidation States | Redox Reactions
Element by itself
Group 1
Group 2
Hydrogen with Metal
0
+1
+2
-1
Element by itself
0
Group 1
+1
14 terms
Oxidation - Reduction Reactions (Redox)
Oxidation Number for F
Oxidation Number for Li, Na, K, Rb, an…
Oxidation Number for Be, Mg, Ca, Sr, a…
Oxidation Number for Al
-1
+1
+2
+3
Oxidation Number for F
-1
Oxidation Number for Li, Na, K, Rb, an…
+1
8 terms
oxidation rules ( REDOX REACTIONS )
oxidation # of an element=
oxidation number of an atom in a monat…
oxidation number of oxygen= -2 EXCEPT…
oxidation # of hydrogen= +1 EXCEPT when
0
the charge on the ion
oxygen is in H2O and other peroxides where oxidation #= -1
hydrogen is in a binary compoumd with a metal such as CaH2 wh…
oxidation # of an element=
0
oxidation number of an atom in a monat…
the charge on the ion
8 terms
Oxidation and Redox Reactions
Oxidation
Reduction
Oxidation number
Rules for assigning Oxidation #'s
the loss of electrons... Zn (s) Zn 2+ (aq) + 2 e-
the gain of electrons... 2e- + Cu2+ (aq) Cu (s)
a value assigned to each atom in a compound that is a measure…
Atoms in the elemental state have an oxidation number of zero…
Oxidation
the loss of electrons... Zn (s) Zn 2+ (aq) + 2 e-
Reduction
the gain of electrons... 2e- + Cu2+ (aq) Cu (s)
14 terms
Oxidation-Reduction (Redox) Reactions
Oxidation
Oxidation Reduction Reaction
Reduction
Oxidizing Agent
Loss of electrons from an atom or ion or the gain of oxygen... O…
Reaction where chemical changes occur as electrons are transf…
Gain of electrons from an atom or ion or the loss of oxygen... O…
Element that will be reduced... Gains electrons
Oxidation
Loss of electrons from an atom or ion or the gain of oxygen... O…
Oxidation Reduction Reaction
Reaction where chemical changes occur as electrons are transf…
13 terms
Redox Reactions and Oxidation Numbers
Redox Reaction
Oxidation
Reduction
Oxidation Numbers
Rxn where one or more e⁻ are transferred, one component is ox…
Loss of e⁻
Gain of e⁻
used to keep track of how many e⁻ are lost or gained by each…
Redox Reaction
Rxn where one or more e⁻ are transferred, one component is ox…
Oxidation
Loss of e⁻
20 terms
Oxidation and Redox Reactions Lab
elements charge
simple elements by themselves charge
alkali charge
alkaline earth charge
0
traditional charge
+1
+2
elements charge
0
simple elements by themselves charge
traditional charge
5 terms
Oxidation Reduction "redox reactions"
Reduction is the "gain" of electrons.…
What is oxidation reduction?
Atom A is giving electrons to atom B.…
Lets say there is a redox reaction bet…
An atom that is "reducing" is actually gaining electrons.... Sin…
The transfer of electrons between atoms
Atom A is being oxidized since it loses electrons, whereas at…
The redox reaction is basically taking away an electron from…
Reduction is the "gain" of electrons.…
An atom that is "reducing" is actually gaining electrons.... Sin…
What is oxidation reduction?
The transfer of electrons between atoms
17 terms
Redox Reactions and Oxidation States
oxidized
reduced
oxidizing agent
reducing agent
lose electrons (more positive)
gains electrons (more negative)
contains the atom being reduced
contains the atom being oxidized
oxidized
lose electrons (more positive)
reduced
gains electrons (more negative)
32 terms
Oxidation, reduction and redox reactions
What has oxidation historically meant?
What has reduction historically meant?
What happens during oxidation?
What happens during reduction?
A reaction in which oxygen was added
A reaction in which oxygen was removed
A molecule loses electrons
A molecule gains electrons
What has oxidation historically meant?
A reaction in which oxygen was added
What has reduction historically meant?
A reaction in which oxygen was removed
32 terms
Oxidation, reduction and redox reactions
Define redox reaction in terms of elec…
Define oxidation.
Define reduction.
Which out of calcium and oxygen is bei…
A redox reaction is when there is a gain of electron by one c…
Oxidation is the loss of electrons. When a species loses elec…
Reduction is the gain of electrons. When a species gains elec…
2Ca --> Ca2+ + 2e-... O2 + 4e- --> 2O2... Calcium is being oxidised…
Define redox reaction in terms of elec…
A redox reaction is when there is a gain of electron by one c…
Define oxidation.
Oxidation is the loss of electrons. When a species loses elec…
19 terms
Oxidation Numbers and Redox Reactions
What is the definition of an oxidation…
Oxidation number of an uncombined elem…
Oxidation number of a combined oxygen?
Oxidation number of a combined oxygen…
the number of electrons of an atom used to bond with atoms of…
0
-2
-1
What is the definition of an oxidation…
the number of electrons of an atom used to bond with atoms of…
Oxidation number of an uncombined elem…
0
10 terms
Oxidation- Reduction Reaction (Redox)
Driven Force
LEO
GER
Which one is LEO and which on is GER
Transfer of electrons
Loses electrons which is oxidization
gains electrons which is reduction
LEO is the first element ... GER is the second element
Driven Force
Transfer of electrons
LEO
Loses electrons which is oxidization
Redox Reaction Prediction (Oxidizers)
MnO₄⁻ (acidic solution)
MnO₄⁻ (basic solution)
Cr₂O₇²⁻ (acid)
CrO₄²⁻
Mn²⁺
MnO₂
Cr³⁺
Cr³⁺
MnO₄⁻ (acidic solution)
Mn²⁺
MnO₄⁻ (basic solution)
MnO₂
16 terms
Oxidation-Reduction (Redox) Reactions Concepts
Oxidation
Reduction
Oxidizing agent
Reducing agent
loss of electrons
gain of electrons
species doing the oxidizing (causing the electron loss)
species doing the reducing (causing the electron gain)
Oxidation
loss of electrons
Reduction
gain of electrons
13 terms
Oxidation number concept and redox reactions.
Oxygen is usually?
In peroxides oxygen is?
Hydrogen is usually?
In metal hydrides hydrogen is?
-2
-1
+1
-1
Oxygen is usually?
-2
In peroxides oxygen is?
-1
7 terms
Redox Reactions: Oxidation charge; [L:170]
Redox
Redox reaction
Involves
Reduction
The chemical reaction in which the oxidizing agent is reduced…
Another name for an oxidation-reduction reaction
Any such reaction involves both a reduction process and a com…
Any process in which electrons are added to an atom or ion (a…
Redox
The chemical reaction in which the oxidizing agent is reduced…
Redox reaction
Another name for an oxidation-reduction reaction
15 terms
7: Oxidation, reduction, and redox reactions
oxidation
reduction
oxidation state
oxidation state of an element
the addition of oxygen or loss of electrons
the removal of oxygen or gain of electrons
charge on the ion, element or atom
0
oxidation
the addition of oxygen or loss of electrons
reduction
the removal of oxygen or gain of electrons
13 terms
Oxidation/Redox reactions/Glycolysis regulation
NAD/NADH and NADP/NADPH
FAD/FADH2 and FMN /FMNH2
FMN
How is NAD+ regenerated?
derived from ATP and niacin (vitamin b3)... NAD/NADH is used in…
derived from ATP and riboflavin (vitamin b2)... usually tightly…
FAD-AMP
aerobic: TCA cycle/ETC ... anaerobic: fermentation
NAD/NADH and NADP/NADPH
derived from ATP and niacin (vitamin b3)... NAD/NADH is used in…
FAD/FADH2 and FMN /FMNH2
derived from ATP and riboflavin (vitamin b2)... usually tightly…
11 terms
chemistry: Acid, oxidation and redox reactions
What is the structure of a salt
What is a hydrated salt
when is a salt anhydrous
what are H ions and how are they relea…
consists of a lattice of ions which water can be incorporated…
It is called water of crystallisation
when it contains no water
when acid is mixed with water, it releases proton
What is the structure of a salt
consists of a lattice of ions which water can be incorporated…
What is a hydrated salt
It is called water of crystallisation
28 terms
Redox Reactions--Important Oxidizers and Reducers
MnO4 1- in acid, reducing
MnO2 in acid, reducing
MnO4 1- in basic or neutral solution,…
CrO7 2- in acid, reducing
Mn 2+
Mn 2+
MnO2
Cr 3+
MnO4 1- in acid, reducing
Mn 2+
MnO2 in acid, reducing
Mn 2+
5 terms
Chemistry 7.1 Oxidation States and Redox Reactions
Electrochemistry
Assigning Oxidation States
Balancing Redox Reactions (Example 1)
Balancing Redox Reaction (Example 2)
Electrochemistry ... -revolves around oxidation reduction reacti…
Rules for assigning oxidation states:... (1) Elements in their…
-Balancing redox reactions is different from balancing normal…
MnO4- + I- ------> Mn2+ + I2... - O is -2, which totals to -8.…
Electrochemistry
Electrochemistry ... -revolves around oxidation reduction reacti…
Assigning Oxidation States
Rules for assigning oxidation states:... (1) Elements in their…
74 terms
Unit 9 Redox Oxidation Reduction Reactions
oxidation
reduction
electrode
electrolysis
a reaction in which the atoms in an element lose electrons an…
a decrease in positive valence or an increase in negative val…
a solid electrical conductor through which an electric curren…
chemical change; especially decomposition produced in an elec…
oxidation
a reaction in which the atoms in an element lose electrons an…
reduction
a decrease in positive valence or an increase in negative val…
9 terms
Oxidation, reduction and redox reactions: Oxidation and reduction 7.1
What does oxidation mean?
What does reduction mean?
What is a reducing agent?
What happens to the electrons in redox…
- Oxygen added to reaction.... - Loss of electrons.
- Oxygen removed from reaction.... - Gain of electrons.... - Additi…
Something that reduced other compounds in reaction.
- Involves movement of electrons.... - Called electron transfer…
What does oxidation mean?
- Oxygen added to reaction.... - Loss of electrons.
What does reduction mean?
- Oxygen removed from reaction.... - Gain of electrons.... - Additi…
19 terms
Oxidation, reduction and redox reactions: Oxidation states 7.2
What are oxidation states also called?
For ions, what information does the ox…
For a molecule, what information does…
The more electronegative an element...
Oxidation numbers.
How many electrons have been lost and gained.
The distribution of electrons between elements of different e…
The more negative the oxidation state.
What are oxidation states also called?
Oxidation numbers.
For ions, what information does the ox…
How many electrons have been lost and gained.
Physical 7 : Oxidation, reduction and redox reactions Definitions
Closed system
Reversible reaction
Dynamic equilibrium
Le Chatelier's Principle
A system where nothing can get in or out
A reversible reaction is a chemical reaction that results in…
In a reversible reaction dynamic equilibrium is reached when…
A theory that states that if there's a change in concentratio…
Closed system
A system where nothing can get in or out
Reversible reaction
A reversible reaction is a chemical reaction that results in…
16 terms
4.5 Oxidation-Reduction (Redox) Reactions
Oxidation-reduction (redox) reaction
Oxidation
Reduction
Oxidizing agent
the net movement of electrons from one reactant to another
the loss of electrons
the gain of electrons
the species doing the oxidizing, gains electrons and is reduced
Oxidation-reduction (redox) reaction
the net movement of electrons from one reactant to another
Oxidation
the loss of electrons
11 terms
Microbial Metabolism - Oxidation Reduction Reactions (redox)
What is oxidation?
What is reduction?
What is the reductant?
What is the oxidant?
loss of electrons
gain of electrons
molecule that gives up electrons to another molecule and beco…
receives electrons from another molecule and thereby reduced
What is oxidation?
loss of electrons
What is reduction?
gain of electrons
125 terms
L22 & 23: Oxidative Phosphorylation and Redox Reactions
What happens if ubiquinone QH2 cannot…
An oxidant is _____ and _____ electrons
Electrons flow spontaneously from a sp…
Cyanide inhibits cytochrome c oxidase…
the citric acid cycle slows down
reduced; gains
True (a species with a more positive ε°' takes up electrons =…
complex IV stops working, the ETC stops working, the TCA cycl…
What happens if ubiquinone QH2 cannot…
the citric acid cycle slows down
An oxidant is _____ and _____ electrons
reduced; gains
AP Chemistry Redox Titration predictions for reduction and oxidation reactions (oxidizing agents)
Elemental Halogen
Metal ion (higher charge)
MnO4 -1 in acidic solution
MnO2 in acidic solution
Halogen ion
Metal ion (lower charge) or metal atom
Mn +2
Mn +2
Elemental Halogen
Halogen ion
Metal ion (higher charge)
Metal ion (lower charge) or metal atom
20 terms
Redox Reactions (common oxidizing and reducing agents)
OX: MnO4 (in acid)
OX: MnO4 (in neutral or basic)
OX: MnO2 (in acid)
OX: Cr2O7^2- (in acid)
Mn^2+
MnO2
Mn^2+
Cr^3+
OX: MnO4 (in acid)
Mn^2+
OX: MnO4 (in neutral or basic)
MnO2
23 terms
Redox Reactions (common oxidizing and reducing agents)
OX: MnO4 (in acid)
OX: MnO4 (in neutral or basic)
OX: MnO2 (in acid)
OX: Cr2O7^2- (in acid)
Mn^2+
MnO2
Mn^2+
Cr^3+
OX: MnO4 (in acid)
Mn^2+
OX: MnO4 (in neutral or basic)
MnO2
17 terms
Redox Reactions
Oxidation
Reduction
Oxidizing Agent
Reducing Agent
loss of electrons
gain of electrons
substance that is reduced
substance that is oxidized
Oxidation
loss of electrons
Reduction
gain of electrons
7 terms
AP Chemistry Redox Titration predictions for reduction and oxidation reactions (oxidizing agents)
Elemental Halogen
Metal ion (higher charge)
MnO4 -1 in acidic solution
MnO2 in acidic solution
Halogen ion
Metal ion (lower charge) or metal atom
Mn +2
Mn +2
Elemental Halogen
Halogen ion
Metal ion (higher charge)
Metal ion (lower charge) or metal atom
24 terms
Redox Reactions
OIL
RIG
Ions
Voltaic cells
Oxidation is Loss
Reduction is Gain
is an atom or group of atoms in which the number of electrons…
is an electrochemical cell that uses a chemical reaction to p…
OIL
Oxidation is Loss
RIG
Reduction is Gain
13 terms
Redox reactions.
What is the order of oxidation and red…
What is a redox reaction
Define oxidation
Define reduction
No order; both always take place at the same time
A reaction that involves oxidation and reduction
3 ways of identifying oxidation:... 1. Addition of Oxygen.... 2. Re…
Reduction is the opposite of oxidation.... 3 ways of identifying…
What is the order of oxidation and red…
No order; both always take place at the same time
What is a redox reaction
A reaction that involves oxidation and reduction
18 terms
Topic 13: Redox Reactions, Video A: Oxidation and Reduction
What is a redox reaction?
What is an oxidation reaction?
What is a reduction reaction?
What does OIL RIG stand for?
When electrons are transferred between ions during a chemical…
When an atom looses electrons.
When an atom gains electrons.
Oxidation Is Loss Reduction Is Gain
What is a redox reaction?
When electrons are transferred between ions during a chemical…
What is an oxidation reaction?
When an atom looses electrons.
8 terms
REDOX REACTIONS
OXIDATION NUMBER
ZERO
OXIDATION
REDUCTION
Charge an element uses when in a compound.
Oxidation number of a free element
Loss of electrons
Gain of electrons
OXIDATION NUMBER
Charge an element uses when in a compound.
ZERO
Oxidation number of a free element
9 terms
Redox Reactions
Redox
Reversible Reaction (⇌)
Oxidation
Oxidation State
A reaction that involves both reduction and oxidation.
One which does not go to completion but can occur in either d…
A reaction in which an atom loses electrons.
The number of electrons lost or gained by an atom in a compou…
Redox
A reaction that involves both reduction and oxidation.
Reversible Reaction (⇌)
One which does not go to completion but can occur in either d…
12 terms
REDOX reactions
What is a redox reaction?
What is oxidation in terms of electrons?
What is reduction in terms of electrons?
What is an oxidizing agent (in terms o…
A redox reaction is one in which both oxidation and reduction…
Oxidation is loss of electrons.
Reduction is gain of electrons
An oxidizing agent removes electrons from something else.
What is a redox reaction?
A redox reaction is one in which both oxidation and reduction…
What is oxidation in terms of electrons?
Oxidation is loss of electrons.
9 terms
Redox Reactions
Redox Reaction
Oxidized
Reduced
Oxidation Numbers
~ short for oxidation-reduction... ~ a chemical reaction in whic…
~ The term given to species that have lost electrons... ~ Increa…
~ The term given to species that have gained electrons... ~ Decr…
~ A positive or negative number assigned to an atom according…
Redox Reaction
~ short for oxidation-reduction... ~ a chemical reaction in whic…
Oxidized
~ The term given to species that have lost electrons... ~ Increa…
12 terms
Oxidation and Redox
Oxidation number
Fluorine is always
Hydrogen w a nm
Hydrogen w a m
Representation of the electron distribution in a molecular co…
-1
+1
-1
Oxidation number
Representation of the electron distribution in a molecular co…
Fluorine is always
-1
11 terms
REDOX and Oxidation
Oxidation
Reduction
Oxidizing agent
Reducing Agent
-When an element is oxidized... -elements lose electrons... -the ch…
-When and elements is reduced... -The elements gains electrons... -…
-Something the gets reduced. ... -The oxidizing agent removes an…
-Something that gets oxidized... -The reducing agent gives an el…
Oxidation
-When an element is oxidized... -elements lose electrons... -the ch…
Reduction
-When and elements is reduced... -The elements gains electrons... -…
8 terms
Oxidation/Redox
Free Elements are assigned an oxidatio…
The oxidation state for any simple One…
The Alkali Metals in compounds are alw…
Florine in compounds is always assigne…
Zero... E.g. Al, Na, Fe, H₂ O₂, N₂, Cl₂ etc have zero oxidation…
Equal to its charge ... e.g. the oxidation state of Na⁺ is +1, B…
+1... e.g. LiOH (Li, +1), in Na₂SO₄(Na, +1)
-1... e.g. in HF₂⁻, BF₂⁻
Free Elements are assigned an oxidatio…
Zero... E.g. Al, Na, Fe, H₂ O₂, N₂, Cl₂ etc have zero oxidation…
The oxidation state for any simple One…
Equal to its charge ... e.g. the oxidation state of Na⁺ is +1, B…
9 terms
Oxidation and redox
All elements have an oxidation state of
H oxidation state is
Group 1 metals oxidation state is
Group 2 metals oxidation state is
0
+1 hydrogen
+1 metals
+2
All elements have an oxidation state of
0
H oxidation state is
+1 hydrogen
9 terms
Redox reactions
what is oxidation in terms of electrons
what is reduction in terms of electrons
what is an oxidising agent
what is a reducing agent
the loss of electrons
the gain of electrons
a substance that accepts electrons
a substance that donates electrons
what is oxidation in terms of electrons
the loss of electrons
what is reduction in terms of electrons
the gain of electrons
34 terms
Topic 13: Redox Reactions, Video E: Oxidizing and Reducing Agents
Redox reactions are __________ transfe…
You can break a redox reaction into an…
An oxidation reaction is the _________…
An ___________ reaction is the increas…
electron
oxidation, reduction
loss
oxidation
Redox reactions are __________ transfe…
electron
You can break a redox reaction into an…
oxidation, reduction
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