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Ernest Capraro

This author has experience both as a chemist and as a teacher of high school chemistry and physics. He is current...more

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Chemistry

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Chemistry Chemistry : What flames are made of What flames are made of

by Aldo Bonincontro

Flames are produced by the reactions between oxygen (the COMBUSTIVE AGENT) and many substances that can react quickly with it, producing gases during the reaction (CO, CO2 and partially burned molecules) and a lot of energy in the form of HEAT (like in all the EXOTHERMIC reactions) that excites the external electrons (e-) of these gases with production of intense light. This light is just the ... read more

Chemistry Explaining the occurrence of a meniscus

by Ernest Capraro

Background: What is a meniscus? The meniscus is most easily seen in a clear narrow tube, partially filled with liquid. If yo... read more

Chemistry Basic properties of titanium

by Aldo Bonincontro

CHEMICAL-PHYSICAL PROPERTIES - Atomic number: 22 - Atomic weight: 47.90 - Electronic configuration: [Ar] 3d2 4s2 - Density (g/c... read more

Chemistry Flash point - What is it, and what's its relevance?

by Michael Capraro

Flash point is the lowest temperature at which a flammable liquid evolves sufficient vapor to form an ignitable mixture of thos... read more

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