Appearing with copper and tin in pennies, for 10 points, name this metal with symbol Zn.
In the presence of palladium, a thioester is reacted with an organohalide containing this metal to produce ketones in the Fukuyama coupling, and this element is coupled with copper to produce cyclopropane in the Simmons-Smith reaction. An amalgam of mercury and this metal is used in the Clemmensen reduction. Its sulfide mixed with iron forms the mineral sphalerite, and a pyrithione of this metal was common in shampoo before deemed harmful. The production of galvanized steel involves soaking the steel in this metal and then using galvanization to coat the steel with it. Appearing with copper and tin in pennies, for 10 points, name this metal with symbol Zn.
In the presence of palladium, a thioester is reacted with an organohalide containing this metal to produce ketones in the Fukuyama coupling, and this element is coupled with copper to produce cyclopropane in the Simmons-Smith reaction.
zinc [or Zn before mentioned]