 шппмдд 
                                                19.10.2020 13:49
                                                
                                                шппмдд 
                                                19.10.2020 13:49
                                             RETYUOP 
                                                19.10.2020 13:10
                                                
                                                RETYUOP 
                                                19.10.2020 13:10
                                             Scvetocheek1 
                                                19.10.2020 13:10
                                                
                                                Scvetocheek1 
                                                19.10.2020 13:10
                                             daryaaleksandr2 
                                                13.03.2019 20:38
                                                
                                                daryaaleksandr2 
                                                13.03.2019 20:38
                                             Наташа123454321 
                                                13.03.2019 20:38
                                                
                                                Наташа123454321 
                                                13.03.2019 20:38
                                             GiTToS 
                                                24.04.2020 20:17
                                                
                                                GiTToS 
                                                24.04.2020 20:17
                                             badurina92p0cc49 
                                                24.04.2020 19:43
                                                
                                                badurina92p0cc49 
                                                24.04.2020 19:43
                                             09nika90 
                                                24.04.2020 20:05
                                                
                                                09nika90 
                                                24.04.2020 20:05
                                             boyko3333 
                                                24.05.2021 23:11
                                                
                                                boyko3333 
                                                24.05.2021 23:11
                                            
1) 2Cu+ O2 = 2CuO
2) CuO + 2 HCI= CuCI2 + H2O (X)
3) CuCI2 + 2NaOH = Cu(OH)2 + 2NaCI
4) Cu(OH)2 + H2SO4 → CuSO4 + H2O