А) 4Li + O2 => 2Li2O
2Li + Cl2 => 2LiCl
2Li + S => Li2S
2Li + N2 => 2LiN
Li + C = LiC
4Na + O2 => 2Na2O
2Na + Cl2 => 2NaCl
2Na + S => Na2S
2Na + N2 => 2NaN
Na + C = NaC
2Ca + O2 => 2CaO
Ca + Cl2 => CaCl2
Ca + S => CaS
Ca + N2 => CaN2
Ca + 2C = CaC2
2Fe + O2 => 2FeO
Fe + Cl2 => FeCl2
Fe + S => FeS
Fe + N2 => FeN2
Fe + 2C = FeC2
б) 2Na + 2H2O => 2NaOH + H2↑
Ca + 2H2O => Ca(OH)2 + H2↑
2Al + 3H2O => Al2O3 + 3H2↑
в) Zn + H2SO4 => ZnSO4 + H2↑
2Al + 6HCl => 2AlCl3 + 3H2↑