我们需要考虑无机酸是否含有氧原子:
无氧原子:
hydro + anion root + -ic + acid
HF: Hydrofluoric acid
HCN: Hydrocyanic acid
H2S: Hydrosulfuric acid
有氧原子:
anion or element root + -ous/-ic + acid
HClO4: Perchloric acid
HClO3: Chloric acid
HClO2: Chlorous acid
氧原子数量大选择-ic,小选择-ous。