Răspunsuri

2014-05-22T16:40:14+03:00
Reactii de combinare:
Cu +S=CuS
2Na+S=Na₂S
4Al+3O₂=2Al₂O₃

Reactii de descompunere:
CaCo₃ =CaO+CO₂
2KClO₃=2KCl+3O₂
CuCO₃=CuO+CO₂
MgCO₃=MgO+CO₂
(NH₄)₂CO₃=CO₂+2NH₃+H₂O
1 4 1