The Electronegativity Value Of H Is 21 Given The Electronegativity Of N O And P 30 35 And 464.06 KB 0:33 Play Download
Delicious Chocolate f09f8dabf09f8dadf09f8db0f09f8da1 Cake f09f8db0f09fa781f 239.06 KB 0:17 Play Download