e.g. the enthalpy change of a reaction, mass change on heating, changing the rate of a reacti...
有多少），化学元素（事实、数字和叙述）和惊喜元素（一个惊人的、鲜为人知的事实）。
2018igcse印刷130cie化学电子chemistry coursebook2015新版16sy1.pdf,Richard Harwood and Ian Lodge Cambridge IGCSE® Chemistry Coursebook Fourth edition shop: the neverland shop: the neverland Richard Harwood and Ian Lodge Cambridge IGCSE® Chemistry Cou