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BBC
1 年
Chemical changes and structures: Video playlist
Can be used to recap on ionic compounds or could lead into a classroom discussion on chemical changes and structures.
BBC
5 年
Atomic structure and properties relating to bonding
When elements combine or join together new substances are formed. These substances are called compounds. This is shown in the diagram below There are millions of different compounds and all of ...
Armed robbery in Revesby
7 天
New Compound Found in Chloraminated Water
Since the 1980s, its been known that a mysterious contaminant forms in chloraminated drinking water, but only now has a Swiss ...
13 天
on MSN
Mathematical approach can predict crystal structure in hours instead of months
Researchers at New York University have devised a mathematical approach to predict the structures of crystals—a critical step ...
Yahoo
6 天
Chemical compound found in U.S. drinking water that could harm millions
“It’s a very difficult chemical to find. The hardest part was identifying it and proving it was the structure we were saying ...
7 天
Researchers identify previously unknown compound in drinking water
A team of researchers from the United States and Switzerland has reported the discovery of a previously unknown compound in ...
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