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3 SiH4(g) + 4 NH3(g) = Si3N4(s) + 12 H2(g)
MnO4{-} + Cr{3+} + H{+} = Mn{2+} + Cr{4+} + H2O =>
MnO4{-} + 5 Cr{3+} + 8 H{+} = Mn{2+} + 5 Cr{4+} + 4 H2O
Fe2O3 + C = Fe3O4 + CO =>
3 Fe2O3 + C = 2 Fe3O4 + CO
C + O = CO2 =>
C + 2 O = CO2
NaHCO3(s) + CH3COOH(aq) = NaCH3COO(s) + CO2(g) + H2O(l) =>
NaHCO3(s) + CH3COOH(aq) = NaCH3COO(s) + CO2(g) + H2O(l)
Fe(s) + O2(g) = Fe2O3(s) =>
4 Fe(s) + 3 O2(g) = 2 Fe2O3(s)
C5H9NO + O2 = CO2 + H2O + NO =>
4 C5H9NO + 29 O2 = 20 CO2 + 18 H2O + 4 NO
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
Cu{+2} + OH{-} = Cu(OH)2 =>
Cu{+2} + 2 OH{-} = Cu(OH)2
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
C5H9NO + O2 = CO2 + H2O + NO2 =>
4 C5H9NO + 31 O2 = 20 CO2 + 18 H2O + 4 NO2
CuSO4 + Na2CO3 = CuCO3 + Na2SO4 =>
CuSO4 + Na2CO3 = CuCO3 + Na2SO4
H2 + Br2 = HBr =>
H2 + Br2 = 2 HBr
CaCO3 + HCl = H2O + CO2 + CaCl2 =>
CaCO3 + 2 HCl = H2O + CO2 + CaCl2
Ag + S = Ag2S =>
2 Ag + S = Ag2S
CaCl2(aq) + Al(NO3)3(aq) = Ca(NO3)3(s) + AlCl2(aq) =>
CaCl2(aq) + Al(NO3)3(aq) = Ca(NO3)3(s) + AlCl2(aq)
H2 + Br2 = HBr2 =>
H2 + 2 Br2 = 2 HBr2
AgNO3(aq) + NaCl(aq) = AgCl + NaNO3 =>
AgNO3(aq) + NaCl(aq) = AgCl + NaNO3
CaCl2(aq) + Al(NO3)3(aq) = Ca(NO3)3(s) + AlCl2(aq) =>
CaCl2(aq) + Al(NO3)3(aq) = Ca(NO3)3(s) + AlCl2(aq)
NH3 + O2 = H2O + N2 =>
4 NH3 + 3 O2 = 6 H2O + 2 N2
KNO3 + H2O = HNO3 + K2O =>
2 KNO3 + H2O = 2 HNO3 + K2O
Cl2 + H2O = HCl + HClO3 =>
3 Cl2 + 3 H2O = 5 HCl + HClO3
NH3 + O2 = NO2 + H2O =>
4 NH3 + 7 O2 = 4 NO2 + 6 H2O
Cu(OH)2 + HNO3 = Cu(NO3)2 + H2O =>
Cu(OH)2 + 2 HNO3 = Cu(NO3)2 + 2 H2O
ZnCl2 + (NH4)2S = ZnS + NH4Cl =>
ZnCl2 + (NH4)2S = ZnS + 2 NH4Cl
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
O2 + C6H6 = H2O + CO2 =>
15 O2 + 2 C6H6 = 6 H2O + 12 CO2
Cu(NO3)2 + NaOH = Cu(OH)2 + NaNO3 =>
Cu(NO3)2 + 2 NaOH = Cu(OH)2 + 2 NaNO3
CaC2 + H2O = C2H2 + Ca(OH)2 =>
CaC2 + 2 H2O = C2H2 + Ca(OH)2
H2O + PCl3 = HCl + H3PO3 =>
3 H2O + PCl3 = 3 HCl + H3PO3
CaCO3 + HNO3 = H2O + CO2 + Ca(NO3)2 =>
CaCO3 + 2 HNO3 = H2O + CO2 + Ca(NO3)2
Ba(NO3)2(aq) + K2SO4(aq) = BaSO4(s) + KNO3(aq) =>
Ba(NO3)2(aq) + K2SO4(aq) = BaSO4(s) + 2 KNO3(aq)
Nb2O5 + Cl2 + C = NbO2Cl + CO =>
Nb2O5 + Cl2 + C = 2 NbO2Cl + CO
Mg + H2O = MgO + H2 =>
Mg + H2O = MgO + H2
Ca(OH)2 + Al2(SO4)3 = CaSO4 + Al(OH)3 =>
3 Ca(OH)2 + Al2(SO4)3 = 3 CaSO4 + 2 Al(OH)3
NO2 = O2 + N2 =>
2 NO2 = 2 O2 + N2
Nb2O5 + Cl2 + C = Nb2O2Cl + CO =>
2 Nb2O5 + Cl2 + 6 C = 2 Nb2O2Cl + 6 CO
NH4Cl(s) + H2O(l) = (NH4)2O(aq) + HCl =>
2 NH4Cl(s) + H2O(l) = (NH4)2O(aq) + 2 HCl
Cu(NO3)2 + NaOH = Cu(OH)2 + NaNO3 =>
Cu(NO3)2 + 2 NaOH = Cu(OH)2 + 2 NaNO3
K[Cr(H2O)2(C2O4)2] + KOH = Cr(OH)3 + H2O + K + CO3 =>
K[Cr(H2O)2(C2O4)2] + 11 KOH = Cr(OH)3 + 6 H2O + 12 K + 4 CO3
C + H2 = C3H8 =>
3 C + 4 H2 = C3H8
Fe(NO3)2 + HNO3 = Fe(NO3)3 + NO + H2O =>
3 Fe(NO3)2 + 4 HNO3 = 3 Fe(NO3)3 + NO + 2 H2O
Fe(s) + CuSO4(aq) = FeSO4(aq) + Cu(s) =>
Fe(s) + CuSO4(aq) = FeSO4(aq) + Cu(s)
CO(NH2)2 + BrO{-} = CO2 + N2 + Br{-} + H2O =>
CO(NH2)2 + 3 BrO{-} = CO2 + N2 + 3 Br{-} + 2 H2O
CaCl2(aq) + Al2(NO3)3(aq) = Ca(NO3)3(s) + Al2Cl2(aq) =>
CaCl2(aq) + Al2(NO3)3(aq) = Ca(NO3)3(s) + Al2Cl2(aq)
Mg + Fe2O3 = Fe + MgO =>
3 Mg + Fe2O3 = 2 Fe + 3 MgO
HNO3 + NAHCO3 = NANO3 + H2O + CO2 =>
HNO3 + NAHCO3 = NANO3 + H2O + CO2
CaCO3 + H2SO4 = H2O + CO2 + CaSO4 =>
CaCO3 + H2SO4 = H2O + CO2 + CaSO4
SiH4(g) + NH3(g) = Si3N4(s) + H2(g) =>
3 SiH4(g) + 4 NH3(g) = Si3N4(s) + 12 H2(g)
HNO3 + NaHCO3 = NaNO3 + H2O + CO2 =>
HNO3 + NaHCO3 = NaNO3 + H2O + CO2
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