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Storyboard Text

  • Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn
  •           
  • Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+ Zn2+
  • Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn Zn
  • Cu Cu Cu Cu Cu Cu Cu Cu
  • Cu
  • Zn
  • Zn2+
  • Zn2+
  • K+
  • OH-
  • OH-
  • K+
  • K+
  • OH-
  • K+
  • OH-
  • Zn2+
  • Zn2+
  • Zn2+
  • OH-
  • K+
  • Zn2+
  • K+
  • K+
  • Cu
  • Zn2+
  • Zn
  • OH-
  • OH-
  • OH-
  • K+
  • K+
  • Zn2+
  • OH-
  • Pennies made after 1982 are made with a zinc core coated in copper to give it the brown color
  • Cu
  • Zn
  • The solution on the hot plate was a mixture of Zinc powder (Zn2+) and Potassium hydroxide (K+ and OH-)
  • As the atoms heated up, they began to move around more frequently.
  • Cu
  • Cu
  • Cu
  • Cu
  • Cu
  • Cu
  • Cu
  • Cu
  • Cu
  • Cu
  • Cu
  • The penny was removed from the liquid. The zinc reacted with the copper causing it to stick to the sides of the penny. This created a silver penny.
  • The zinc atoms in the center of the penny moved towards the outside. This movement changed the center from a zinc core into a copper core. 
  • When the metal was heated up, the zinc and copper atoms mixed together.  Together, they formed an alloy. Despite its shiny gold color, this metal is actually brass.
  • Cu
  • Cu
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