Question

1)?+О2>SO2;
2)Na+?>NaOH+H2;
3)Cu(OH)2>?+ H2O;
4)SO3+?>H2SO4;
5) Mg+?>MgSO4+H2
6)NaCl+H2SO4>?+?
7)Ca(HCO3)2>CaCO3+?+?​

Answer 1

Ответ:

1)S+О2-->SO2;

2)2Na+ 2H2O-->2NaOH + H2

3)Cu(OH)2-->CuO+ H2O;

4)SO3+H2O-->H2SO4;

5) Mg+ H2SO4-->MgSO4+H2

6)NaCl+H2SO4-->NaHSO4 + HCl

7)Ca(HCO3)2--->CaCO3+CO2 + H2O