Oxygen ***

Описание к видео Oxygen ***

http://www.periodic-table.org.uk/elem...

Watch this video about the element oxygen. An ideal educational resource for chemistry students, schools and teachers. What is oxygen? Information and facts regarding the element oxygen. Info about the element oxygen including the definition, name classification, history, discovery and occurrence. The physical properties and chemical properties of this element together with the uses of oxygen. http://www.periodic-table.org.uk/inde...

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