1 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007874637x/514816/fig20_9.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (27.0K)</a>]]> A) Alkaline batteries do not need the carbon rod cathode. B) Alkaline batteries do not require steel cases. C) No zinc is reduced in the alkaline batteries. D) Zinc paste takes up less space than zinc powder. 2 A) Paint acts as a sacrificial anode. B) Paint corrodes leaving steel intact. C) Paint galvanizes steel. D) Paint prevents the oxidation-reduction reaction of corrosion from occurring. 3 A) primary battery B) secondary battery C) fuel cell D) electrolytic cell 4 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007874637x/514716/figure_20_8.jpg','popWin', 'width=304,height=303,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (30.0K)</a>]]> A) water vapor B) manganese (IV) oxide C) ammonia gas D) manganese (III) oxide 5 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/007874637x/514716/figure_20_17.jpg','popWin', 'width=451,height=328,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (51.0K)</a>]]> A) Magnesium is less dense than iron. B) Magnesium is non-magnetic. C) Magnesium oxidizes more easily than iron. D) Magnesium is a better electrical conductor than iron.
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