| Scienceray > Chemistry |
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Chemistry |
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 | | Radioactive Glossy White Paper | | by thestickman, Jan 6, 2009 | | In this post 9-11 world of inspections at international border crossings, false alarms can and do occur. While this can be scary for you and me and an inconvenient delay for all, have patience. Here is a false-positive scenario that can actually occur. It involves a white silicate mineral clay called “Kaolin,” as used in the manufacturing of glossy white paper. | | Comments(7) Liked It: 7 |
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| |  | | Acids | | by Zeo12, Dec 16, 2008 | | A great variety of matter exists in the world, and it is necessary to have a method for classifying it. If we know something about the various properties of elements and compounds, we can classify them according to those properties and can more easily see the relationships. There are numerous compounds, but no two are exactly alike in all their properties. However, groups of compounds may have similar properties. Acids, for example, have similar properties. They have many uses and play an important part in our day-to-day living. In this section, you will study the properties of acids and some of the common acids and their uses. | | Comments(0) Liked It: 0 |
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 | | C’mon Baby Light my (bio-luminescent) Fire! | | by thestickman, Dec 12, 2008 | | Flashing and strobing in the dark of the night, fireflies are a common sight for people in the country. Their pale green light contains no ultraviolet or infrared rays for they are bioluminescence. Chemically produced self-illumination, -to attract a mate and to warn predators of their presence. Most fireflies are noxious of taste, and some varieties are actually deadly toxic to some predators. | | Comments(9) Liked It: 6 |
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