Worksheets!WORKSHEET 2Part 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 arecalled4. 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 theelectrodes.Part II. Choose the letter of the best answer.1. It can be defined as a chemical reaction in which electrons are transferred between tworeactants participating in it.a. Oxidationb. Reduction2. Unlike a battery, this type of cell does not store chemical or electrical energy thusallows electrical energy to be extracted directly from a chemical reaction.a. Leclanché Dry Cellc. Fuel cellsb. Button Batteriesd. Lead Storage Batteryc. Redox Reactiond. Reaction3. These batteries are non-rechargeable and disposable.a. Primary Batteriesb. Secondary Batteries4. These batteries can be recharged.a. Primary Batteriesb. Secondary Batteriesc. Tertiary Batteriesd. None of the abovec. Tertiary Batteriesd. None of the above5. Which of the following is true about Leclanché Dry Cell?a. It is mainly used to provide the starting power in virtually every automobileand 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. 326. The anodic area of a metal surface is oxidized and loses its electrons to the cathodicarea. At the cathodic area the oxygen reduces and reacts with the oxidized metal toform metal oxide, so calleda. Cathodec. Irond. Rustb. Electrolyte7. When an ionic substance is dissolved in water or melted then the ions are free tomove.a. Trueb. False8. A process of converting the ions of a compound in a liquid state into their reducedor oxidized state by passing an electric current through the compound.c. Cannot be determineda. Electrolytesb. Electrocutionc. Electrolysisd. ElectricityPart 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/Clhalf-cell reactions. Identify the anode and the cathode.2. Write an essay with your understanding on the corrosion process in forming metal oxideor 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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1. What is oxidation? 2. What is reduction? 3. Electron-accepting species which tend to undergo a reduction in redox reactions are called