H2 + Cl2 = 2HCl
2H3PO4 + 3 MgO = Mg3 (PO4)2 + 3 H2O
3CaCl2 + 6 K3PO4 = CaPO4 + 6 KCl
2Zn+ O2 = 2ZnO
3Ca + N2 = Ca3N2
Ca + 2HCl = CaCl2 + H2
2Mg + CuCl2 = 2MgCl2 + H2
3Zn + 2 FeCl3 = 3 ZnCl2 + 2Fe
2HNO3 + Ca(OH)2 = Ca(NO3)2 + 2H2O
2Al + 3S = Al2S3
F2 + 2 KBr = Br2 + 2KF
Fe2(SO4)3 + 6 NaOH = 2 Fe(OH)3 + 3 Na2SO4