 Maks2405 
                                                19.05.2020 02:49
                                                
                                                Maks2405 
                                                19.05.2020 02:49
                                             pamagiteplease 
                                                19.05.2020 02:49
                                                
                                                pamagiteplease 
                                                19.05.2020 02:49
                                             Нуртилек2664467 
                                                19.05.2020 03:05
                                                
                                                Нуртилек2664467 
                                                19.05.2020 03:05
                                             anastaswiip01dya 
                                                19.05.2020 02:48
                                                
                                                anastaswiip01dya 
                                                19.05.2020 02:48
                                             Aannddrreeyy22 
                                                19.05.2020 02:48
                                                
                                                Aannddrreeyy22 
                                                19.05.2020 02:48
                                             maruha3008 
                                                19.05.2020 02:48
                                                
                                                maruha3008 
                                                19.05.2020 02:48
                                             DANIKom 
                                                19.05.2020 02:48
                                                
                                                DANIKom 
                                                19.05.2020 02:48
                                             ТаСм 
                                                19.05.2020 03:05
                                                
                                                ТаСм 
                                                19.05.2020 03:05
                                             anastasia69smirnova 
                                                19.05.2020 03:06
                                                
                                                anastasia69smirnova 
                                                19.05.2020 03:06
                                            
CuO+2HNO3=H2O+Cu(NO3)2
Cu(NO3)2+2NaOH=Cu(Oh)2+2NaNO3
Cu(OH)2=CuO+H2O
S+O2=SO2
2SO2+O2=2SO3
SO3+H2O=H2SO4
H2SO4+Cu=CuSO4+H2