“One of these days, someone is going to die” from injuries sustained in a chemistry classroom fire, Calais Weber Biery says. “I almost did.” In 2006, when Biery was 15, her chemistry teacher set up a ...

A cleaned, moistened flame test wire is dipped into a solid sample of the compound. It is then put into the edge of a blue Bunsen flame. The flame colour produced indicates which metal ion is present ...

Yet another methanol flash fire has occurred with injuries when a high school teacher was demonstrating the “rainbow” flame test (C&EN, Nov. 9, 2015, page 6). While “rainbow” demonstrations have been ...

In this video, Fran Scott demonstrates how to test for various ions and interpret the results. Flame tests and chemical tests are used to detect and identify ions in samples. Instrumental methods of ...

Salt slurries in petri dishes with methanol are ignited and characteristic colors for various metals are observed. Colors of emission spectra are due to loosely-bound valence electrons being excited ...

At least that’s what the creator of this product hopes your child will say when they get these crayons, which are labeled with the actual chemical used to give each colored wax stick its hue. If the ...