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i would like help with any from #3. 3a will work10751515

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DOX AND ACTIVITY SERIES
Complete all problems and submit before lab begins. Show all of your work, units, and correct
significant figures for full credit.
1. Find the oxidation state of each element in the following compounds:
a. CaCl,
Cat
Cl _
b. NO,
N + 4
O -2
c. H,
HO
d. H,SO
H +
s_to
0 - 2
2. Define the following:
a. electron affinity Amount of energy needed to remove an election from a sing!
Charged negative ion .
b. ionization energy
c. oxidation
Energy required to remove an election from a gaseous atom or ion.
d. reduction
Loss of electrons during a reaction by a molecule, atom orion,
A half- reaction
in
which a chemical species decreases it's
oxidation # ,usually by gaining elections.
3. Given the following reactions, identify the element that is being oxidized, and the ele-
ment being reduced.
reduced
oxidized
+3 - 2
a.
4 Fe + 30, - 2 Fe203
b. 3 Cuz+ + 2 Al - 2 A13 + + 3 Cu
c. Zn + 1, - Zn2+ + 21-
d. 2 1- + Cl, - 2 Cl-+ 12
4.
Write the balanced net ionic equation for each complete equation. Also identify which
element was oxidized and which was reduced.
a. Al(5) + CuCl2(20) - AlCl,(2q) + Cu(s)
net ionic:
oxidized
reduced
b. AgNO 3(ag) + Zn(s) - Zn(NO3) 2(20) + Ag(s)
net ionic:
oxidized
reduced
7.0

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I have attached the answers below. Please... View the full answer

IMG_20191014_101211.jpg

Reduction
O
y Fe
O
+ 302
+ 3 - 2
- 7 2 fe, 0 3
oxidation
ON of 0 in Fe,ag = - 2
in Let, D.Notfe B = X
2 2 + 3( - 2 ) = 0
2 2 -6 = 0
HO
1 201 = 6
A
n = + 3
SO
oxidized
( loss of electicons)
Reduced...

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