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4 Li + O2 = 2 Li2O
CaSO4 = CaS + O2 =>
CaSO4 = CaS + 2 O2
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
S + Fe = FeS =>
S + Fe = FeS
Al + HNO3 = Al(NO3)3 + NH4NO3 + H2O =>
8 Al + 30 HNO3 = 8 Al(NO3)3 + 3 NH4NO3 + 9 H2O
H2SO4(aq) + Na2CO3(s) = Na2SO4(aq) + H2O + CO2(g) =>
H2SO4(aq) + Na2CO3(s) = Na2SO4(aq) + H2O + CO2(g)
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
HNO3 + H2O = NO3 + H3O =>
HNO3 + H2O = NO3 + H3O
KI(aq) + Hg2(NO3)2(aq) = KNO3(aq) + Hg2I2(s) =>
2 KI(aq) + Hg2(NO3)2(aq) = 2 KNO3(aq) + Hg2I2(s)
Sb2S3 + O2 = Sb2O3 + SO2 =>
2 Sb2S3 + 9 O2 = 2 Sb2O3 + 6 SO2
Mg3Si2O5(OH)4 + CO2 = MgCO3 + SiO2 + H2O =>
Mg3Si2O5(OH)4 + 3 CO2 = 3 MgCO3 + 2 SiO2 + 2 H2O
KMnO4 + MnSO4 + ZnO = MnO2 + ZnSO4 + K2SO4 =>
2 KMnO4 + 3 MnSO4 + 2 ZnO = 5 MnO2 + 2 ZnSO4 + K2SO4
Hf(OH)4 = HfO2 + H2O =>
Hf(OH)4 = HfO2 + 2 H2O
KMnO4 = K2MnO4 + MnO2 + O2 =>
2 KMnO4 = K2MnO4 + MnO2 + O2
ZN + CuO = ZNO + Cu =>
ZN + CuO = ZNO + Cu
Fe + KNO3 + KOH = KFeO2 + N2 + H2O =>
10 Fe + 6 KNO3 + 4 KOH = 10 KFeO2 + 3 N2 + 2 H2O
H2SO4 + Ag = Ag2SO4 + H2 =>
H2SO4 + 2 Ag = Ag2SO4 + H2
Na + HNO3 = NaNO3 + N2O + H2O =>
8 Na + 10 HNO3 = 8 NaNO3 + N2O + 5 H2O
Pb + H2O + NaOH = Na2Pb(OH)4 + H2 =>
Pb + 2 H2O + 2 NaOH = Na2Pb(OH)4 + H2
HfO2 + H2O = Hf(OH)4 =>
HfO2 + 2 H2O = Hf(OH)4
C6H5OH + NaOH = C6H5ONa + H2O =>
C6H5OH + NaOH = C6H5ONa + H2O
H2SO4 + H2O = H3O + HSO4 =>
H2SO4 + H2O = H3O + HSO4
C7H16 + O2 = CO2 + H2O =>
C7H16 + 11 O2 = 7 CO2 + 8 H2O
Fe(OH)2(s) + H2O2(l) = Fe(OH)3(s) =>
2 Fe(OH)2(s) + H2O2(l) = 2 Fe(OH)3(s)
NH3(g) + O2(g) = N2(g) + H2O(g) =>
4 NH3(g) + 3 O2(g) = 2 N2(g) + 6 H2O(g)
Hf(OH)4 = HfO2 + H2O =>
Hf(OH)4 = HfO2 + 2 H2O
H2S + H2SO4 = SO2 + H2O =>
H2S + 3 H2SO4 = 4 SO2 + 4 H2O
S + NaOH = Na2S + Na2S2O3 + H2O =>
4 S + 6 NaOH = 2 Na2S + Na2S2O3 + 3 H2O
MgO + P2O5 = Mg2P2O7 =>
2 MgO + P2O5 = Mg2P2O7
Fe + KNO3 = K2FeO4 + NO =>
Fe + 2 KNO3 = K2FeO4 + 2 NO
BiO3{-} + Cr{3+} + H{+} = Cr2O7{2-} + Bi{3+} + H2O =>
3 BiO3{-} + 2 Cr{3+} + 4 H{+} = Cr2O7{2-} + 3 Bi{3+} + 2 H2O
Ca3(PO4)2 + H2O = H3PO4 + CaO =>
Ca3(PO4)2 + 3 H2O = 2 H3PO4 + 3 CaO
Cu(OH)2 + HNO3 = Cu(NO3)2 + H2O =>
Cu(OH)2 + 2 HNO3 = Cu(NO3)2 + 2 H2O
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
Li3N + H2O = LiOH + NH3 =>
Li3N + 3 H2O = 3 LiOH + NH3
Ba + C = BaC =>
Ba + C = BaC
CH3COOH + CuCO3 = CuCH3COO + H2O + CO2 =>
9 CH3COOH + 8 CuCO3 = 8 CuCH3COO + 6 H2O + 10 CO2
NH3 + H2SO4 = N2(SO4)3 + H =>
2 NH3 + 3 H2SO4 = N2(SO4)3 + 12 H
Al + C = AlC =>
Al + C = AlC
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
FeCr2O4 + KNO3 + NaOH = K2Cr2O7 + NaHNO2 + FeO =>
FeCr2O4 + 2 KNO3 + 2 NaOH = K2Cr2O7 + 2 NaHNO2 + FeO
AG + HNO3 = AGNO3 + NO + H2O =>
3 AG + 4 HNO3 = 3 AGNO3 + NO + 2 H2O
P4 + Br2 + H2O = H3PO4 + HBr =>
P4 + 10 Br2 + 16 H2O = 4 H3PO4 + 20 HBr
FeCl3 + Br2 + KOH = K2FeO4 + KBr + KCl + H2O =>
2 FeCl3 + 3 Br2 + 16 KOH = 2 K2FeO4 + 6 KBr + 6 KCl + 8 H2O
K + Cl2 = KCl =>
2 K + Cl2 = 2 KCl
Ca3P2 + H2O = Ca(OH)2 + PH3 =>
Ca3P2 + 6 H2O = 3 Ca(OH)2 + 2 PH3
K2Cr2O7 + KOH = K2CrO4 + H2O =>
K2Cr2O7 + 2 KOH = 2 K2CrO4 + H2O
Zn + H2SO4 = ZnSO4 + S + H2O =>
3 Zn + 4 H2SO4 = 3 ZnSO4 + S + 4 H2O
BaO + SO3 = BaSO4 =>
BaO + SO3 = BaSO4
K2S + H2O + KBrO4 = S + KBr + KOH =>
4 K2S + 4 H2O + KBrO4 = 4 S + KBr + 8 KOH
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