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h2+cl=2hcl
2h3por+3mgo=mg3(po4)2+3h2o
3cacl2+2k3po3=ca3(po4)2+6kcl
2zn+o2=2zno
3ca+n2=ca3n2
ca+hcl=cacl2+h2
mg+cucl2=mgcl2+cu
3zn+2fecl3=3zncl+2fe
ca(oh)2+hno3=ca(no3)2+h2o
2al+3s=al2s3
fe2+kbr=2kfe+br2

H2 + Cl2 (свет) = 2 НСl ↑
3 MgO + 2 H3PO4 = Mg3(PO4)2 + 3 H2O
3 CaCl2 + 2 K3PO4 = Ca3(PO4)2 ↓ + 6 KCl
2 Zn + O2 = 2 ZnO
3 Ca + N2 = Ca3N2
Ca + 2 HCl = CaCl2 + H2 ↑
Mg + CuCl2 = MgCl2 + Cu ↓
3 Zn + 2 FeCl3 = 3 ZnCl2 + 2 Fe ↓
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
2 Al + 3 S t° = Al2S3
2 KBr + F2 = 2 KF + Br2
Fe2(SO4)3 + 6 NaOH = 2 Fe(OH)3 ↓ + 3 Na2SO4