Question

степень окисления HCl, H2SO4, H2SO3, HNO3, HNO2, H2SiO3, H2S, HBr, H3PO4.

Answer 1

H(+1)Cl(-1)
H2(+1)S(+6)O4(-2)
H(+1)N(+5)O3(-2)
H(+1)N(+3)O2(-2)
H2(+1)Si(+4)O3(-2)
H2(+1)S(-2)
H(+1)Br(-1)
H3(+1)P(+5)O4(-2)