НгO - Hg Ⅱ; ZnO - Zn Ⅱ; NiO - Ni Ⅱ; BaO - Ba Ⅱ; PH3 - P Ⅲ; SiH4 - Si Ⅳ; H2O - H Ⅰ; CH4 - C Ⅳ; HF - H Ⅰ; HBr - H Ⅰ.
НгO - Hg Ⅱ; ZnO - Zn Ⅱ; NiO - Ni Ⅱ; BaO - Ba Ⅱ; PH3 - P Ⅲ; SiH4 - Si Ⅳ; H2O - H Ⅰ; CH4 - C Ⅳ; HF - H Ⅰ; HBr - H Ⅰ.