Category Archives: Chemistry

All across the country, Americans will wrap up their Fourth of July celebrations by watching the sky light up with fireworks. If youre going to be one of them, you have chemistry to thank. Fireworks displays have become increasingly sophisticated and spectacular, but the chemical reactions that make them possible are pretty basic, according to John Conkling, an adjunct chemistry professor at Washington College in Chestertown, Md., and past executive director of the American Pyrotechnics Assn. Conkling literally wrote the book on fireworks -- its called Chemistry of Pyrotechnics: Basic Principles and Theory, and it was first published in 1985. As Conkling explains in the video above, all fireworks have two essential ingredients -- a chemical thats rich in oxygen (different types of these chemicals produce different colors when they burn) and a chemical that serves as the fuel (different fuels burn at different rates and temperatures). Without chemistry, you wouldnt have the burning mixtures, Conkling says. Without the burning mixtures, you wouldnt have fireworks. Once these mixtures are made, they are packed into an aerial shell thats about as big as a snowcone. This cardboard contraption has a pocket of black powder on the bottom, which propels the shell … Continue reading →

Chemistry - Responsive Portfolio Shop WP Theme + Download Download here: http://goo.gl/qx43mn Introducing Chemistry, a fun, fresh, clean modern responsive WordPress theme perfect for any business, artist, portfolio or shop website. Built on the... By: fiercethemesupdate … Continue reading →

The Choice for Chemistry Research Meets the Choice for Chemistry Drawing CAS and PerkinElmer collaborate to combine the power of two leading chemistry solutions: SciFinder and ChemDraw. The functionality of this landmark collaboration enables ChemBioDraw Ultra 14... By: Chemical Abstracts Service … Continue reading →

Prabha Modi Applied Chemistry Chemical Bondings and Catalysis 3 Prabha Modi- Parul Institute of Engineering Technology (Diploma Studies),Vadodara- Applied Chemistry- Chemical Bondings and Catalysis-1a. Explain various properties of material depending... By: Roma Thakur … Continue reading →

Prabha Modi Applied Chemistry Chemical Bondings and Catalysis 1 Prabha Modi- Parul Institute of Engineering Technology (Diploma Studies),Vadodara- Applied Chemistry- Chemical Bondings and Catalysis-1a. Explain various properties of material depending... By: Roma Thakur … Continue reading →

Prabha Modi Applied Chemistry Chemical Bondings and Catalysis 2 Prabha Modi- Parul Institute of Engineering Technology (Diploma Studies),Vadodara- Applied Chemistry- Chemical Bondings and Catalysis-1a. Explain various properties of material depending... By: Roma Thakur … Continue reading →

#39;The Notebook' Stars Reportedly Had No Chemistry On the 10-year anniversary of the film, the director says Rachel McAdams and Ryan Gosling often argued behind the scenes. By: ABC News … Continue reading →

A2 Chemistry OCR F324 - Phenols 2 Reaction of phenol with bromine followed by an explanation of the increased reactivity of phenol compared to benzene. Video finishes with some uses of phenols. By: MaChemGuy … Continue reading →

Dan Alessi - Alternative Water Sources, Constraining Flowback Chemistry Since millions of liters of water are needed for each fracture done in hydraulic fracturing, Dan Alessi found it pertinent to research the sources of water, ... By: LanduseKN … Continue reading →

Chemistry Polymers part 2 (Polymerization) CBSE class 12 XII Chemistry Polymers part 2 (Polymerization) CBSE class 12 XII. By: ExamFearVideos … Continue reading →