Question

A) When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown?

**CrO _{4}^{2-}** +

Water appears in the balanced equation as a (reactant, product, neither) with a coefficient of .

How many electrons are transferred in this reaction?

B)

**Ni** + **Cr**_{2}**O**_{7}^{2}
**-->** **Ni ^{2+}** +

Water appears in the balanced equation as a (reactant, product, neither) with a coefficient of _____

How many electrons are transferred in this reaction?

C)

**Pb** +
**Cu**^{2+} -->
**Pb ^{2+}** +

Water appears in the balanced equation as
a (reactant, product, neither) with a coefficient of
_____

How many electrons are transferred in this reaction?

Answer #1

A)
Pb +
Cu2+ -->
Pb2+ +
Cu+
Water appears in the balanced equation as
a (reactant, product, neither) with a coefficient of
_____
How many electrons are transferred in this reaction?
B)
Ni +
Cr2O72-->
Ni2+ +
Cr3+
Water appears in the balanced equation as
a (reactant, product, neither) with a coefficient of
_____
How many electrons are transferred in this reaction?

When the following equation is balanced properly under acidic
conditions, what are the coefficients of the species shown?
Mn2+ + NO3- MnO2 + HNO2
Water appears in the balanced equation as a (reactant, product,
neither) with a coefficient of . (Enter 0 for neither.)
How many electrons are transferred in this reaction?

When the following equation is balanced properly under acidic
conditions, what are the coefficients of the species shown?
_____ HNO2 + _____
NiO2
----->____NO3- + ____
Ni2+
Water appears in the balanced equation as a _____ (reactant,
product, neither) with a coefficient of _____. (Enter 0 for
neither.)
How many electrons are transferred in this reaction? ______

When the following equation is balanced properly under acidic
conditions, what are the coefficients of the species shown?
BrO3- + ClO2 Br- + ClO3-
Water appears in the balanced equation as a (reactant,
product, neither) with a coefficient of . (Enter 0 for
neither.)
How many electrons are transferred in this reaction?

A) When the following equation is balanced properly under acidic
conditions, what are the coefficients of the species shown?
_Fe2++ _PbO2
---> _Fe3++
_Pb2+
Water appears in the balanced equation as a ____ (reactant,
product, neither) with a coefficient of .
Which element is reduced? ___
B) When the following equation is balanced properly under acidic
conditions, what are the coefficients of the species shown?
_Cr2++
_Fe2+--->
_Cr3++ _Fe
Water appears in the balanced equation as a ____ (reactant,
product,...

When the following skeletal equation is balanced under basic
conditions, what are the coefficients of the species shown?
F-+ HPbO2-
-----> F2+ Pb
Water appears in the balanced equation as a _____(reactant,
product, neither) with a coefficient of_____ . (Enter 0 for
neither.)
Which species is the reducing
agent?_____

1. When the following equation is balanced properly under basic
conditions, what are the coefficients of the species shown?
__N2H4 +
__Cl2>__N2
+ __Cl-
Water appears in the balanced equation as a (reactant,
product, neither) with a coefficient of ___. (Enter 0 for
neither.)
Which element is oxidized?
___
2. Use the standard reduction potentials located in the 'Tables'
linked above to calculate the standard free energy change in kJ for
the reaction:
2Cr3+(aq)
+
Zn(s)>2Cr2+(aq)
+ Zn2+(aq)
Answer: ___ kJ...

Obtain the balanced equation, using the lowest possible whole
numbers, for the redox reaction in acidic solution:
CH3OH(aq) + Cr2O72−(aq)
→ CH2O(aq) + Cr3+(aq) How many H+
appear in the final balanced equation, and which side are they
on?
A) 8, reactant side
B) 8, product side
C) 14, reactant side
D) 6, product side
E) 12, reactant side
Answer is A. Please explain step by step.

When the following equation is balanced in an acidic solution
how many electrons are transferred?
MnO4- + H2SO3 -->
SO42- + Mn2+

Balance the reaction between Ag and
Br2 to form
Br- and
Ag2O in basic solution. When you have
balanced the equation using the smallest integers possible, enter
the coefficients of the species shown.
___Ag + ___Br2
----> ___Br- +
___Ag2O
Water appears in the balanced equation as a ____(reactant, product,
neither) with a coefficient of ___. (Enter 0 for neither.)
How many electrons are transferred in this reaction? ____

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