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which is an example of radiation?
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Ответ:
the one with the snowman in the sun.
Explanation:
The sun radiates heat, which in turn, melts the snowman. Science rules!!
Ответ:
Because the oxidation state is an artificial number
Explanation:
The oxidation state is the charge that an atom would have if all its shared electrons belonged to the more electronegative atom, that is, if the bonds were completely ionic. This seldom happens.
For example, consider NH₃ and HNO₃.
Both compounds are covalent.
However, the N in NH₃ has an oxidation number of -3, because N is more electronegative than H.
Thus, N "gains" the three H electrons and gets a theoretical charge of -3.
The N in HNO₃ has an oxidation number of +5, because O is more electronegative than N.
Thus, N "loses" its five electrons and gets a theoretical charge of +5.