Demos!

Demo #1 Decomposition "Volcano" Ammonium Dichromate decomposition with heat (NH4)2Cr2O7(s) --> Cr2O3(s) + N2(g) + 4H2O(g)

Demo #2 Redox/ combustion Sodium chlorate and Haribo Gummy bear (sugar)

two steps: 2NaClO3(l) → 2NaCl(s) + 3O2(g)

Oxygen then reacts with sugar (C12H22O11)... C12H22O11(s) + 12O2(g) → 12CO2(g) + 11H2O(l) + heat 5650 kJ/mol

Demo #3 Precipitation Fe(NO3)3(aq) + 3NaOH (aq) --> Fe(OH)3(s) + 3NaNO3(aq)

CoCl2(aq) + Ca(OH)2(aq) --> Co(OH)2(s) + CaCl2(aq)

K2CrO4(aq) + Pb(O2CCH3)2(aq) --> PbCrO4(s) + 2KO2CCH3(aq)

Demo #4-6Density

Oil:Water: Dye

 "Water and different temperatures"

<span style="font-family: Georgia,serif;">Density Column


 * <span style="font-family: Georgia,serif;">Sublimation of I2 **
 * I 2 (s) on hot plate || I 2 (g) Trapped in beaker "sublimation" || I 2 (s) recrystallized "deposition" ||
 * [[image:fwhspreapchem/20130911_101001.jpg width="234" height="396"]] || [[image:fwhspreapchem/20130911_101213.jpg width="232" height="405"]] || [[image:20130911_104156.jpg width="232" height="399"]] ||
 * Single Displacement/ Chemical Change**
 * 2AgNO 3 (aq) + Cu(s) --> Cu(NO 3 ) 2 (aq) + 2Ag(s)**
 * [[image:20130916_093945.jpg width="293" height="490"]] || [[image:20130916_081416.jpg width="290" height="493"]] ||