(NH4) 2NaOH + CO2 = Na2CO3 + H2O absorbed CO2 in CO, O2 and H2, 2NaOH + SO2 = Na2SO3 + H2O 2NaOH + SO3 = Na2SO4 + H2O treatment of the exhaust of sulphuric acid plant (SO2) FeCl3 + 3NaOH = Fe (OH) 3 + 3NaCl solution yellow fades and reddish brown precipitation is ...
What do Tom and Sarah have in common?补全对话。A -- salesgirl B -- customerA: Good afternoon, can I help you?B: Yes, (1) ___ .A: We have different kinds of sports shoes. They're all in style. What color would you like?B: I prefer blue.A: (...