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Presentation transcript:

Students type their answers here 1 In a fuel cell, most of the chemical energy is converted to _____ energy. Students type their answers here

Students type their answers here If the calculated cell potential is _____, the reaction is spontaneous. positive negative c. neutral d. balanced 2 Students type their answers here

Students type their answers here 3 The _____ the difference in potential energy between two electrodes, the larger the voltage. lesser greater c. balance of d. charge of Students type their answers here

Students type their answers here 4 A _____ is a unit used to measure cell potential. Students type their answers here

Students type their answers here 5 A/An _____ agent is a substance that has the potential to cause another substance to be reduced. reducing oxidizing c. chemical d. biological Students type their answers here

Students type their answers here 6 Reduction involves the _____ of electrons. gain loss c. displacement d. bonding Students type their answers here

Students type their answers here 7 Copper taking on a green patina is an example of a/an _____ reaction. chemical b. decomposition c. oxidation d. reduction Students type their answers here

Students type their answers here 8 In fuel cells, _____ acts as a fuel. hydrogen b. lead c. oxygen d. zinc Students type their answers here

Students type their answers here 9 The tendency of a substance to _____ electrons is its reduction potential. gain loss c. share d. express Students type their answers here

Students type their answers here 10 A voltaic cell converts _____ energy to _____ energy. Students type their answers here

Students type their answers here 11 The electrode where oxidation takes place is called the ___________. Students type their answers here

Students type their answers here 12 Oxidation involves the _____ of electrons. gain b. loss c. displacement d. bonding Students type their answers here

Students type their answers here 13 List the oxidation numbers for each element below. Identify the oxidized and reduced atoms in the following equation. Mg + I2 → MgI2 Students type their answers here

Students type their answers here 14 Calculate the net change in oxidation number of chlorine in the following redox reaction. Cl2 + ZnI2 → ZnCl2 + I2 Students type their answers here

Students type their answers here 15 List the oxidation numbers for each element below. Identify the oxidized and reduced atoms in the following equation. H2S + Cl2 → S + 2HCl Students type their answers here

16 Calculate the standard cell potential, and determine if the reaction is spontaneous or not. Fe3+ + Co2+ → Fe2+ + Co3+

Students type their answers here 17 Calculate the standard cell potential, and determine if the reaction is spontaneous or not. Fe3+ + Cu+ → Fe2+ + Cu2+ Students type their answers here

Co2+ → Co3+ + e- Fe3+ + e- → Fe2+ 18 For the following half-reactions, write a balanced equation for the overall cell reaction and calculate the standard cell potential. Co2+ → Co3+ + e- Fe3+ + e- → Fe2+