Chemistry 1010 Batteries and Light. Demo Ag+ + Cu  Cu2+ + Ag penny in AgNO3 Zn + Cu2+  Zn2+ + Cu Zinc in a copper sulfate solution.

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Presentation transcript:

Chemistry 1010 Batteries and Light

Demo Ag+ + Cu  Cu2+ + Ag penny in AgNO3 Zn + Cu2+  Zn2+ + Cu Zinc in a copper sulfate solution

Batteries Explain in Great Detail how a wet electrochemical (battery) cell works!!!!

What About A Flashlight Battery Zn + 2 MnO 2 +H 2 O  Zn 2+ + Mn 2 O OH-

Other Common Batteries Mercury cell Zn / HgOcalculators, hearing aids Silver Oxide Zn / Ag2Owatches, cameras Nickel Cadmium Cd / NiOrechargeable batteries Lithium cells Li / MnO2pacemakers

How Does a Car Battery Work Same as an electrochemical cell but reversible Pb + PbO2 + H2SO4  2PbSO4 + 2H2O + 2e- Add electricity 2PbSO4 + 2H2O + 2e-  Pb + PbO2 + H2SO4

Electric Cars Let’s Talk About It

The Color of Things