Oxidation Number

In HClO4- why is O.N of H= 1? and not -1
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@Dexter
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stargirl
stargirl7mo ago
"The oxidation number of hydrogen is +1 when it is combined with a nonmetal as in CH4, NH3, H2O, and HCl.
The oxidation number of hydrogen is -1 when it is combined with a metal as in. LiH, NaH, CaH2, and LiAlH4."
Deleted User
Deleted UserOP7mo ago
ah sorry i got confused with the definition sry sry thanks a lott +solved @stargirl
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