Question

Cum se rezolva ecuatiile acestor reactii chimice?
Na+O2
Cl+H2O
K+Cl2
Fe+Cl2
Na+H2O
H2+Cl2

Answer 1

4Na + O2=2Na2O

Cl2 + H2O=HCl +HClO          [HClO=HCl +O    ;   O+O=O2  ]

2K + Cl2=2KCl

2Fe +3 Cl2 =2FeCl3

2Na+2 H2O=2NaOH + H2

H2 + Cl2=2HCl