Section 2: Silver tarnish is the result of the oxide on the silver surface reacting with hydrogen sulfide (H2S) in air. This leaves a black film of silver sulfide (Ag2S). Polishing the tarnished silver will restore the shine but at the expense of some of the silver metal. An alternative process is to allow aluminum to reduce the silver in the presence of a solution of sodium bicarbonate (baking sodium) electrolyte. Image of an aluminum grid restoring silver: 2. Assume Aluminum and Silver Sulfide are the starting substances (reactants) in the reaction: a. Write a balanced chemical equation describing the "re-creation" of silver metal, using the information in the case study. b. State the names of the products that are produced from this reaction. c. What type of reaction(s) is/are being represented by the chemical reaction you wrote in part (a)? d. Is the reaction in part (a) an oxidation-reduction (redox) reaction? e. If this is a redox reaction, then identify the following: What is undergoing oxidation (what is being oxidized)? Support your answer using oxidation numbers. What is undergoing reduction (what is being reduced)? Support your answer using oxidation numbers. What is the reducing agent? What is the oxidizing agent? Section 3: Both animals and plants rely on stored energy for survival. Animals can store energy in the form
Section 2: Silver tarnish is the result of the oxide on the silver surface reacting with hydrogen sulfide (H2S) in air. This leaves a black film of silver sulfide (Ag2S). Polishing the tarnished silver will restore the shine but at the expense of some of the silver metal. An alternative process is to allow aluminum to reduce the silver in the presence of a solution of sodium bicarbonate (baking sodium) electrolyte. Image of an aluminum grid restoring silver: 2. Assume Aluminum and Silver Sulfide are the starting substances (reactants) in the reaction: a. Write a balanced chemical equation describing the "re-creation" of silver metal, using the information in the case study. b. State the names of the products that are produced from this reaction. c. What type of reaction(s) is/are being represented by the chemical reaction you wrote in part (a)? d. Is the reaction in part (a) an oxidation-reduction (redox) reaction? e. If this is a redox reaction, then identify the following: What is undergoing oxidation (what is being oxidized)? Support your answer using oxidation numbers. What is undergoing reduction (what is being reduced)? Support your answer using oxidation numbers. What is the reducing agent? What is the oxidizing agent? Section 3: Both animals and plants rely on stored energy for survival. Animals can store energy in the form
Chapter4: Types Of Chemical Reactions And Solution Stoichiometry
Section: Chapter Questions
Problem 109AE: The blood alcohol (C2H5OH) level can be determined by titrating a sample of blood plasma with an...
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For #2 can you please show me all answers for all the parts of the question and explanation
Transcribed Image Text:Section 2:
Silver tarnish is the result of the oxide on the silver surface reacting with hydrogen sulfide (H2S)
in air. This leaves a black film of silver sulfide (Ag2S). Polishing the tarnished silver will restore
the shine but at the expense of some of the silver metal. An alternative process is to allow
aluminum to reduce the silver in the presence of a solution of sodium bicarbonate (baking sodium)
electrolyte.
Image of an aluminum grid restoring silver:
2. Assume Aluminum and Silver Sulfide are the starting substances (reactants) in the
reaction:
a. Write a balanced chemical equation describing the "re-creation" of silver metal, using
the information in the case study.
b. State the names of the products that are produced from this reaction.
c. What type of reaction(s) is/are being represented by the chemical reaction you wrote
in part (a)?
d. Is the reaction in part (a) an oxidation-reduction (redox) reaction?
e. If this is a redox reaction, then identify the following:
What is undergoing oxidation (what is being oxidized)? Support your answer using
oxidation numbers.
What is undergoing reduction (what is being reduced)? Support your answer using
oxidation numbers.
What is the reducing agent?
What is the oxidizing agent?
Section 3:
Both animals and plants rely on stored energy for survival. Animals can store energy in the form
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