In: Chemistry
1. When the following equation is balanced properly under acidic
conditions (balance under acidic condtions), what are the
coefficients of the species shown?
SO42- +
Mn2+>SO2
+ MnO4-
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?
2. When the following equation is balanced properly under basic
conditions, what are the coefficients of the species shown?
Br-+ Cl2
> Cl-+ Br2
Water appears in the balanced equation as a (reactant,
product, neither) with a coefficient of . (Enter 0 for
neither.)
Which element is oxidized?
3. Use the standard reduction potentials located in the 'Tables' linked above to calculate the standard free energy change in kJ for the reaction:
Zn2+(aq) +
2Fe2+(aq)>
Zn(s) +
2Fe3+(aq)
Answer: ___ kJ
K for this reaction would be _greater or less_ than one.