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1. What is oxidation? 2. What is reduction? 3. Electron-accepting species which tend to undergo a reduction in redox reactions are called

1. What is oxidation? 2. What is reduction? 3. Electron-accepting species which tend to undergo a reduction in redox reactions are called

Chemistry
Chemistry
10th Edition
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Worksheets! WORKSHEET 2 Part I. Read and answer the following questions. 1. What is oxidation? 2. What is reduction? 3. Electron-accepting species which tend to undergo a reduction in redox reactions are called 4. Write the 4 conventional kinds of primary batteries. 5. Explain the hazards of using batteries. 6. List at least 3 examples of objects that are powered by primary batteries. C. a. b. 7. List at least 3 examples of objects that are powered by secondary batteries. 8. For electrochemical corrosion to occur, three ingredients must be present. Those are: b. a. C. 9. TRUE or FALSE. During electrolysis, ionic substances are decomposed into simpler. substances when an electric current is passed through them. 10. TRUE or FALSE. One of the factors affecting electrolysis is the undervoltage of the electrodes. Part II. Choose the letter of the best answer. 1. It can be defined as a chemical reaction in which electrons are transferred between two reactants participating in it. a. Oxidation b. Reduction 2. Unlike a battery, this type of cell does not store chemical or electrical energy thus allows electrical energy to be extracted directly from a chemical reaction. a. Leclanché Dry Cell c. Fuel cells b. Button Batteries d. Lead Storage Battery c. Redox Reaction d. Reaction 3. These batteries are non-rechargeable and disposable. a. Primary Batteries b. Secondary Batteries 4. These batteries can be recharged. a. Primary Batteries b. Secondary Batteries c. Tertiary Batteries d. None of the above c. Tertiary Batteries d. None of the above 5. Which of the following is true about Leclanché Dry Cell? a. It is mainly used to provide the starting power in virtually every automobile and marine engine. b. It is conventionally used to power watches and calculators. c. Its efficiency is generally between 40% and 60%. d. It is not very efficient in producing electrical energy.
Transcribed Image Text:Worksheets! WORKSHEET 2 Part I. Read and answer the following questions. 1. What is oxidation? 2. What is reduction? 3. Electron-accepting species which tend to undergo a reduction in redox reactions are called 4. Write the 4 conventional kinds of primary batteries. 5. Explain the hazards of using batteries. 6. List at least 3 examples of objects that are powered by primary batteries. C. a. b. 7. List at least 3 examples of objects that are powered by secondary batteries. 8. For electrochemical corrosion to occur, three ingredients must be present. Those are: b. a. C. 9. TRUE or FALSE. During electrolysis, ionic substances are decomposed into simpler. substances when an electric current is passed through them. 10. TRUE or FALSE. One of the factors affecting electrolysis is the undervoltage of the electrodes. Part II. Choose the letter of the best answer. 1. It can be defined as a chemical reaction in which electrons are transferred between two reactants participating in it. a. Oxidation b. Reduction 2. Unlike a battery, this type of cell does not store chemical or electrical energy thus allows electrical energy to be extracted directly from a chemical reaction. a. Leclanché Dry Cell c. Fuel cells b. Button Batteries d. Lead Storage Battery c. Redox Reaction d. Reaction 3. These batteries are non-rechargeable and disposable. a. Primary Batteries b. Secondary Batteries 4. These batteries can be recharged. a. Primary Batteries b. Secondary Batteries c. Tertiary Batteries d. None of the above c. Tertiary Batteries d. None of the above 5. Which of the following is true about Leclanché Dry Cell? a. It is mainly used to provide the starting power in virtually every automobile and marine engine. b. It is conventionally used to power watches and calculators. c. Its efficiency is generally between 40% and 60%. d. It is not very efficient in producing electrical energy.
32 6. The anodic area of a metal surface is oxidized and loses its electrons to the cathodic area. At the cathodic area the oxygen reduces and reacts with the oxidized metal to form metal oxide, so called a. Cathode c. Iron d. Rust b. Electrolyte 7. When an ionic substance is dissolved in water or melted then the ions are free to move. a. True b. False 8. A process of converting the ions of a compound in a liquid state into their reduced or oxidized state by passing an electric current through the compound. c. Cannot be determined a. Electrolytes b. Electrocution c. Electrolysis d. Electricity Part III. Answer the questions below. Write your answer in a separate sheet of paper. 1. Calculate the standard cell potential of a voltaic cell that uses the Cu/Cu₂+ and Cl₂/Cl half-cell reactions. Identify the anode and the cathode. 2. Write an essay with your understanding on the corrosion process in forming metal oxide or rust. 3. How do batteries revolutionize our today's technology? Give your insights. SAN PEDRO RELOCATION CENTER NATIONAL HIGH SCHOOL-SCIENCE DEPARTMENT Ⓒ2020
Transcribed Image Text:32 6. The anodic area of a metal surface is oxidized and loses its electrons to the cathodic area. At the cathodic area the oxygen reduces and reacts with the oxidized metal to form metal oxide, so called a. Cathode c. Iron d. Rust b. Electrolyte 7. When an ionic substance is dissolved in water or melted then the ions are free to move. a. True b. False 8. A process of converting the ions of a compound in a liquid state into their reduced or oxidized state by passing an electric current through the compound. c. Cannot be determined a. Electrolytes b. Electrocution c. Electrolysis d. Electricity Part III. Answer the questions below. Write your answer in a separate sheet of paper. 1. Calculate the standard cell potential of a voltaic cell that uses the Cu/Cu₂+ and Cl₂/Cl half-cell reactions. Identify the anode and the cathode. 2. Write an essay with your understanding on the corrosion process in forming metal oxide or rust. 3. How do batteries revolutionize our today's technology? Give your insights. SAN PEDRO RELOCATION CENTER NATIONAL HIGH SCHOOL-SCIENCE DEPARTMENT Ⓒ2020
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