氯化氢 Traditional form: 氯化氫 Pinyin (reading): lühuàqīng Definitions: hydrogen chloride HCl Characters: 氯 - chlorine 化 - to change, to convert, to reform; -ize 氢 - ammonia Traditional characters: 氯 - chlorine 化 - to change, to convert, to reform; -ize 氫 - ammonia