electrons gained lost Red uction and ox idation reactions redox reactions o xygen atoms lost gained A re these reactions examples of oxidation or reduction 1 C ID: 634348
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Slide1
redox
reduction
oxidation
electrons
gained
lost
Red
uction and
ox
idation reactions –
redox
reactions
oxygen atoms
lost
gainedSlide2
Are these reactions
examples of oxidation or reduction?1.
C +
C
2. S +
S
3. 2Mg
+
2MgO
4.
+
OThe above
are all examples of oxidation reactions.
Slide3
Oxidation reactions
An oxidation reaction is a reaction in which__________________________________
oxygen atoms are gained by a substance.Slide4
Are these examples of oxidation or reduction?
1. 2
O
4Ag
2. 2HgO H
3. 2
2
O
4.
2
2PbO
+
The above are all examples
of
reduction reactions.
Slide5
Reduction reactions
A reduction reaction is a reaction in which__________________________________
oxygen atoms are lost from a substance.Slide6
Redox reactions
A redox reaction, which is a common type of chemical reaction, consists of both oxidation
and reduction. Slide7
redox
reduction
oxidation
Redox
reactions
o
xygen atoms
lost
gainedSlide8
redox
reduction
oxidation
electrons
gained
lost
Redox
reactions
o
xygen atoms
lost
gainedSlide9
Are these examples of oxidation or reduction?
1. Na Na+
+ e - 2,8,1 2,82.
Mg Mg2+ + 2e
- 2,8,2 2,83. Fe2+
Fe3+ + e
–The above are all examples of oxidation
reactions.Slide10
Redox reactions
An oxidation reaction is a reaction in which__________________________________
electrons are lost from a substance.Slide11
Are these examples of oxidation or reduction?
1.
+ 2e
- 2Cl
-2,8,7 2,8,82.
+
4e
-
2O2-
2,6 2,83. Cu2+
+ 2e - Cu
The above are all examples of
reduction reactions
.
Slide12
Redox reactions
A reduction reaction is a reaction in which__________________________________
electrons are gained by a substance.Slide13
redox
reduction
oxidation
electrons
gained
lost
Redox
reactionsSlide14
redox
reduction
oxidation
electrons
gained
lost
Redox
reactions
o
xygen atoms
lost
gainedSlide15
3
4Fe
Carbon gains oxygen atoms in the reaction so it undergoes
an oxidation
reaction.
Iron(III) oxide loses oxygen atoms in the reaction so it undergoes
a reduction
reaction.
What has changed
in C? Has C gained or lost oxygen
atoms?Check the definition.
Repeat
the process for iron.
Redox
reactionsSlide16
What has changed
in C?Has C gained or lost oxygen atoms?Check
the definition. Repeat the process for iron.
Redox reactions
3
4Fe
Slide17
Identify which substance
is going through oxidation and which is going through reduction?
Redox reactions2
O