【单选题】Oh, it’s you! I _______________ about our meeting here.
【单选题】对于反应,实验发现,如两反应物浓度都加倍,则反应速率增至8倍。该反应的级数是()
【单选题】对于反应 ,实验发现,如两反应物浓度都加倍,则反应速率增至8倍。该反应的级数为
【单选题】—Have you _____ visited the old house by the river? —No, _____. [ ]
【单选题】— You do have the book I've been looking forward to? — Ha, sure. I ____ if I didn't. [ ]
A.
would never have called
【单选题】对于反应 Cl 2 (g) + 2NO(g) 2NOCl(g) ,实验发现,如两反应物浓度都加倍,则反应速率增至 8 倍。该反应的级数是