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- Oxygen (9039 bytes)
1: {{Elementbox_header | number=8 | symbol=O | name=oxygen | left=[[nit...
18: ...tates | −'''2''', −1<br />(neutral oxide) }}
24: {{Elementbox_vanderwaalsrad_pm | [[1 E-10 m|152]] }}
37: ...usually called molecular oxygen, O<sub>2</sub>) made its initial appearance on Earth as a product of ...
38: ...|thumb|150px|left|Chemistry Clipart .Clipart provided by [http://classroomclipart.com Classroom Clip A... - Chemical compound (2050 bytes)
1: ... the composition. For example, [[dihydrogen monoxide]] ([[water]], {{hydrogen}}{{sub|2}}{{oxygen}}) is...
3: ...ium gallium arsenide]], or [[chocolate]] are considered [[mixture]]s or [[alloy]]s rather than compoun...
5: ...sed of [[molecule]]s; for example, [[sodium chloride]] (table salt, {{sodium}}{{chlorine}}) is an [[io...
7: ...at]]ed to a certain [[temperature]] (called the [[decomposition temperature]]).
8: ...scribed in literature carries a unique numerical identifier, its [[CAS number]]. - Water (15217 bytes)
1: ...ies of pure water (H<sub>2</sub>O) (dihydrogen oxide).''
15: ... the first time: [[hail]], [[snow]], [[fog]] or [[dew]] for example. When appropriately lit, water dr...
17: ...iding river [[valley]]s and [[delta]]s which provide rich soil and level ground for the establishment ...
21: ...taste or smell very differently. In fact, we have developed our senses to be able to evaluate the drin...
26: ...density]] at 4°[[Celsius|C]]: it becomes less dense as it [[freezing|freezes]] or [[heat]]s up. As...
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