Объяснение:
2) 2Ca + O2 = 2CaO
2K + Cl2 = 2KCl
Cu + Cl2 = CuCl2
4Na + O2 = 2Na2O
Ba + S = BaS
2Na + S = Na2S
2) 4Li + O2 = 2Li2O
4Al + 3O2 = 2Al2O3
Zn + Cl2 = ZnCl2
2Al +3 Cl2 =2 AlCl3
3) 2P + 5Cl2 = 2PCl5
2HCl + Mg = MgCl2 + H2
N2 + 3H2 = 2NH3
2HgO = 2Hg + O2
Объяснение:
2) 2Ca + O2 = 2CaO
2K + Cl2 = 2KCl
Cu + Cl2 = CuCl2
4Na + O2 = 2Na2O
Ba + S = BaS
2Na + S = Na2S
2) 4Li + O2 = 2Li2O
4Al + 3O2 = 2Al2O3
Zn + Cl2 = ZnCl2
2Al +3 Cl2 =2 AlCl3
3) 2P + 5Cl2 = 2PCl5
2Na + S = Na2S
2HCl + Mg = MgCl2 + H2
N2 + 3H2 = 2NH3
2HgO = 2Hg + O2