The nickel-cadmium battery is used in portable appliances and power tools Unbalanced half-reactions that occur in this battery are Cd s + 2OH − a q → Cd OH 2 s NiO 2 s + 2H 2 O l → Ni OH 2 s + 2OH − a q Which equation represents the oxidation half-reaction? Which represents the reduction half-reaction? Add electrons to the appropriate side of each equation to account for the chance in oxidation number.
The nickel-cadmium battery is used in portable appliances and power tools Unbalanced half-reactions that occur in this battery are Cd s + 2OH − a q → Cd OH 2 s NiO 2 s + 2H 2 O l → Ni OH 2 s + 2OH − a q Which equation represents the oxidation half-reaction? Which represents the reduction half-reaction? Add electrons to the appropriate side of each equation to account for the chance in oxidation number.
Solution Summary: The author explains that the equation represents oxidation half-reaction and reduction half. The atoms are balanced but the charge is not balanced.
The nickel-cadmium battery is used in portable appliances and power tools Unbalanced half-reactions that occur in this battery are
Cd
s
+
2OH
−
a
q
→
Cd
OH
2
s
NiO
2
s
+
2H
2
O
l
→
Ni
OH
2
s
+
2OH
−
a
q
Which equation represents the oxidation half-reaction? Which represents the reduction half-reaction? Add electrons to the appropriate side of each equation to account for the chance in oxidation number.
Q3: Describes the relationship (identical, constitutional isomers, enantiomers or diastereomers)
of each pair of compounds below.
ག
H
CH3
OH
OH
CH3
H3C
OH
OH
OH
//////////
C
CH3
CH3
CH3
CH3
H3C
CH 3
C/III.....
Physics & Astronomy
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COOH
H
нош.....
H
2
OH
HO
CH3
HOOC
H
CH3
CH3
CH3
Br.
H
H
Br
and
H
H
H
H
Q1: For each molecule, assign each stereocenter as R or S. Circle the meso compounds. Label
each compound as chiral or achiral.
OH
HO
CI
Br
H
CI
CI
Br
CI
CI
Xf x f g
Br
D
OH
Br
Br
H₂N
R.
IN
Ill
I
-N
S
OMe
D
II
H
CO₂H
1/111
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These are synthesis questions. You need to show how the starting material can be converted into
the product(s) shown. You may use any reactions we have learned. Show all the reagents you
need. Show each molecule synthesized along the way and be sure to pay attention to the
regiochemistry and stereochemistry preferences for each reaction. If a racemic molecule is made
along the way, you need to draw both enantiomers and label the mixture as "racemic".
All of the carbon atoms of the products must come from the starting material!
?
H
H
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell