Round 7: Tossup 15

A powder of this element reduces iron oxide in exothermic welding due to its (10[1])high (10[1])affinity for oxygen. (10[1])A catalyst of this element alloyed with nickel is activated with sodium hydroxide and is named for Murray Raney. This element is (10[1])produced by dissolving a precursor in cryolite and electrolyzing the molten salt bath. (10[1])This element is the third most abundant in the Earth’s crust after oxygen and silicon. This element is produced in the Hall–Héroult (“hall-ay-ROO”) process from its oxide, (-5[1])which is isolated in the Bayer process for refining bauxite (10[1])(“BOX-ite”). For 10 points, name this ultralight metal used to make (10[1])soda cans and foil. ■END■

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