Wednesday June 26th – Thursday June 27th, 2013: As part of the Department of Chemistry & Biochemistry’s outreach efforts through the REU Program, Casey and 5 JMU professors helped run a science…
A reaction between two white solids occurs when lead nitrate and potassium iodide are shaken forcefully producing a mixture of yellow and white solid products. The reaction occurs almost instantaneously when aqueous solutions of these compounds are mixed, precipitating yellow lead iodide.
Pb(NO3)2 + 2KI → PbI2 + 2KNO3
When magnesium ribbon is placed in hydrochloric acid, hydrogen gas is produced causing the mixture to bubble.
Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g)
If they hydrogen gas is collected, it can be ignited to demonstrate the potential safety concerns of an evolved gas.
H2 (g) + O2 (g) → H2O (g)
As two rusty cannon balls (one covered in aluminum foil) are smashed together, sparks and a cracking sound are produced.
Fe2O3 (s) + 2Al (s) → Al2O3 (s) + 2Fe (s)
http://www.vmi.edu/Content.aspx?id=10737419845
A program for K-12 teachers and high school students