化学方程式 huàxuéfāngchéngshì chemical equation Origin Definitions Defs Strokes Stroke Words Sentences Sents 化学 化學 huàxué noun chemistry; chemical chemistry; chemical; the study of the structure, properties, and reactions of matter方程式 fāngchéngshì noun equation a mathematical statement that two expressions are equal, usually containing one or more unknown values; chemical equation or formula