In which of the following compounds does hydrogen have a negative oxidation number? a) CH4
b) H2O2
c) NH3
d) NaH​

space exploration has led to the development and technological improvement of many everyday items. (if this answer is wrong i will find the right answer) : )

nuhygjhuhuouh9oygyuhuh8h9guig97uogh8uog978o0rfyhkmkv h

answer///carbon;