 TipsSpeed 
                                                17.12.2020 13:48
                                                
                                                TipsSpeed 
                                                17.12.2020 13:48
                                             Pashayka 
                                                17.12.2020 13:48
                                                
                                                Pashayka 
                                                17.12.2020 13:48
                                             daniilbesperst 
                                                17.12.2020 13:48
                                                
                                                daniilbesperst 
                                                17.12.2020 13:48
                                             vlada23912 
                                                17.12.2020 13:48
                                                
                                                vlada23912 
                                                17.12.2020 13:48
                                             VladShevshenko228 
                                                17.12.2020 13:49
                                                
                                                VladShevshenko228 
                                                17.12.2020 13:49
                                             артиик 
                                                17.12.2020 13:49
                                                
                                                артиик 
                                                17.12.2020 13:49
                                             qwerty882 
                                                17.12.2020 13:49
                                                
                                                qwerty882 
                                                17.12.2020 13:49
                                            
1)Zn
2)Mg(OH)2
3)Na2O
4)Na2CO3
Объяснение:
Zn + 2HCl = ZnCl2 + H2
Mg(OH)2 + 2HCl = MgCl2 + 2H2O
Na2O + 2HCl = 2NaCl + H2O
Na2CO3 + 2HCl = 2NaCl + H2O + CO2