e oxidation number o

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Pls answer number 2 with solution

1. Calculate the change in the internal energy of the system for a process in which the system
releases 140 J of heat into the surroundings and does 85 J of work on the surroundings.
2. Determine the oxidation number of nitrogen, N of the following species:
a. N,0,
b. NH,
c. NO,
d. N.
3. Balance the following ionic equation for reaction in acidic solution.
Fe"• Mno,
"in + Mn ".
4. A voltaic cell consists of the following information:
two half reactions: Mg metal strip in a MĘSO, solution and
: Cu metal strip in a Cuso, solution.
Salt bridge: Naso,
A. Write the half-reactions indicating the cathode and anode reactions.
B. Write the balanced overall equation.
C. Write the cell notation for the voltaic cell.
D. Draw a diagram for the voltaic cell.
Transcribed Image Text:1. Calculate the change in the internal energy of the system for a process in which the system releases 140 J of heat into the surroundings and does 85 J of work on the surroundings. 2. Determine the oxidation number of nitrogen, N of the following species: a. N,0, b. NH, c. NO, d. N. 3. Balance the following ionic equation for reaction in acidic solution. Fe"• Mno, "in + Mn ". 4. A voltaic cell consists of the following information: two half reactions: Mg metal strip in a MĘSO, solution and : Cu metal strip in a Cuso, solution. Salt bridge: Naso, A. Write the half-reactions indicating the cathode and anode reactions. B. Write the balanced overall equation. C. Write the cell notation for the voltaic cell. D. Draw a diagram for the voltaic cell.
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