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6. Which is true of free radicals?They are powerful antioxidants. They readily share electrons. They have an odd number of electrons. Correct!Correct!They are strong bases. 1 / 1 ptsQuestion 77. Why are free radicals so damaging?8. Which is nota common redox reaction?
9. After an apple is cut, it discolors. What oxidant causes the discoloration?10. Which statement about silver tarnishing is true?The black discoloration is silver oxide. Tarnishing is caused by hydrogen sulfide. Correct!Correct!Tarnishing is caused by oxygen in the air. Tarnish can be removed by rubbing the silver object with silver sulfide. 1 / 1 ptsQuestion 1111. When a metal ore is smelted,a metal is reduced.
a metal salt is coverted to a metal oxide.
5/2/16, 4:43 PMQuiz Chapter 10: CHE101-01-SP16Page 5 of 11a metal is oxidized by carbon. a metal oxide is reduced. Correct!Correct!1 / 1 ptsQuestion 1212. For the following, unbalanced, reaction, the metal isFe+ O+ HO ---> Fe O02223Correct!Correct!corroding. 1 / 1 ptsQuestion 1313. For the following reaction in the smelting of iron ore, the iron is2 FeO+ 3 C ---> 4 Fe+ 3 CO2302being oxidized.