down into atoms and ions, then recombine as new substances. This process is called a chemical reaction. Commonly in reactions, light emission, heat generation, color change or precipitate formation oc...轉碼失敗！請您使用右上換源切換源站閱讀或者直接前往源網站進行閱讀！and appeared to be sleeping while the latter looked shocked.Yun Shangyue withdrew her gaze and suddenly laughed. "This is quite a surprise! I didn't hear about this before! Cloud Wu, don’t speak nonse...