Na+Br2-->NaBr
Fe+Cl2-->FeCl3
N2+H2-->NH3
Al+C-->Al4C3
Mg+P-->Mg3P2
B+O2-->B2O3
H2O-->H2+O2
Fe+Br2-->FeBr3
Na+H2-->NaH
P+O2-->P2O5
K+S-->K2S
Ag+O2-->Ag2O
Al+I2-->All3
C+H2-->CH4

Уровень 2

Al+WO3-->W+Al2O3
PbO2+H2-->Pb+H2O
NH3+O2-->N2+H2O
Ca+HCl-->CaCl2_H2
Al+Cr2O3-->Al2O3+Cr
KNO3-->KNO2+O2
Na2SO4+BaCl2-->BaSO4+NaCl
Na2O2+H2O-->NaOH+O2
CH4+O2-->CO2+H2O
Fe2O3+HCl-->FeCl3+H2O
H2S+O2-->SO2+H2O
Al2O3+HCl-->AlCl3+H2O

3 Уровень

Zn(OH)2+HNO3-->Zn(NO3)2+H2O
Ba(NO3)2+K2SO4-->BaSO4+KNO3
Na2SiO3+CaCl2-->NaCl+CaSiO3
CuCl2+KOH-->Cu(OH)2+KCl
Ba(OH)2+HNO3-->Ba(NO3)2+H2O
K3PO4+Ba(NO3)2-->KNO3+Ba3(PO4)2

отдам с удовольствием 50 баллов за ВСЕ решенное задание.
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