BYU ONLINE: CHEMISTRY 043: SPEEDBACK LESSON 8 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS LATEST UPDATED VERSION 2025/2026 GUARANTEED PASS

8/12/25, 8:13
PM

BYU ONLINE: CHEMISTRY 043: SPEEDBACK LESSON 8
EXAM QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS LATEST UPDATED VERSION 2025/2026
GUARANTEED PASS



Terms in this set (30)



In the following equation, Cl
which species is
oxidized?


TiCl4(l) + O2(g) → TiO2(s) +
2Cl2(g)




T
i
C
l
O
TiO2
Which substances react lead(IV) oxide, lead, and sulfuric acid
in the standard
automobile battery?



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copper(II) oxide, copper,
and sulfuric acid iron(III)
oxide, iron, and sulfuric
acid
zinc oxide, zinc, and
sulfuric acid
lead(IV) oxide, lead, and
sulfuric acid




In a voltaic cell with anode
electrodes made from
zinc and copper, the
zinc is dissolved into
solution as Zn2+. What
is the zinc electrode
called?


metal
electrode
cathode
reducing electrode
anode
In the reaction It is oxidized.
represented by the
equation: Fe → Fe3+ + 3e-,
what happens to the
species Fe?


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It is oxidized.
It is neutralized.
It is made
disproportionate
. It is reduced.
What does the 0
algebraic sum of
the oxidation
numbers of the
atoms in a
compound always
equal?


-1
any whole
number 0
+1
In the following FOR SOME REASON IT'S NOT THE FIRST ONE... I
equation, which species THINK THEIR ANSWER IS WRONG BECAUSE
is the oxidizing agent? CARBON SEEMS LIKE IT'S THE CORRECT
ANSWER
SiO2(s) + 2C(s) → Si(s) +
2CO(g)




C
Si
O
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