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2 H2 + O2 = 2 H2O
FeS + HNO3(conc) = Fe(NO3)3 + NO + H2O + H2SO4 =>
FeS + 6 HNO3(conc) = Fe(NO3)3 + 3 NO + 2 H2O + H2SO4
NaH2PO4 = Na3P3O9 + H2O =>
3 NaH2PO4 = Na3P3O9 + 3 H2O
P4 + OH{-} + H2O = HPO3{2-} + PH3 =>
P4 + 4 OH{-} + 2 H2O = 2 HPO3{2-} + 2 PH3
A1 + O2 = A12O3 =>
24 A1 + 3 O2 = 2 A12O3
CdS = Cd + S =>
CdS = Cd + S
Ca + H2O = CaO + H2 =>
Ca + H2O = CaO + H2
Fe + O2 + HCl = FeCl2 + H2O =>
2 Fe + O2 + 4 HCl = 2 FeCl2 + 2 H2O
Al + H2 = AlH3 =>
2 Al + 3 H2 = 2 AlH3
SO2 + H2O2 = SO3 + H2O = H{+} + SO4 = =>
SO2 + H2O2 = SO3 + H2O
Ca(OH)2 + NHO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 NHO3 = Ca(NO3)2 + 2 H2O
Ni(NO3)2*6H2O + Al + CH4N2O = Ni3Al + CO2 + N2 + H2O =>
3 Ni(NO3)2*6H2O + Al + 6 CH4N2O = Ni3Al + 6 CO2 + 9 N2 + 30 H2O
SmCl2 + KMnO4 + H2SO4 = Sm2(SO4)3 + K2SO4 + MnSO4 + H2O + HCl =>
10 SmCl2 + 2 KMnO4 + 18 H2SO4 = 5 Sm2(SO4)3 + K2SO4 + 2 MnSO4 + 8 H2O + 20 HCl
Ni + O2 = Ni2O2 =>
2 Ni + O2 = Ni2O2
Cu(NH3)4SO4*H2O = CuO + SO2 + NO + NH3 + H2O =>
5 Cu(NH3)4SO4*H2O = 5 CuO + 5 SO2 + 2 NO + 18 NH3 + 8 H2O
Zn + OH = ZnO + H2O =>
Zn + 2 OH = ZnO + H2O
H3PO4(aq) + KOH(s) = K3PO4(s) + H2O(l) =>
H3PO4(aq) + 3 KOH(s) = K3PO4(s) + 3 H2O(l)
Na2[B2O4(OH)4] = H2O2 + NaBO2 =>
Na2[B2O4(OH)4] = 2 H2O2 + 2 NaBO2
KClO3 + H2O = KOH + HClO3 =>
KClO3 + H2O = KOH + HClO3
Fe(s) + AgNO3(aq) = Fe(NO3)3(aq) + Ag(s) =>
Fe(s) + 3 AgNO3(aq) = Fe(NO3)3(aq) + 3 Ag(s)
Ca + HOH = Ca(OH)2 + H2 =>
Ca + 2 HOH = Ca(OH)2 + H2
KMnO4 + H2SO4 + SmCl2 = MnSO4 + K2SO4 + SmCl4 + H2O + SmSO4 =>
2 KMnO4 + 8 H2SO4 + 10 SmCl2 = 2 MnSO4 + K2SO4 + 5 SmCl4 + 8 H2O + 5 SmSO4
Sr(OH)2(aq) + H3PO4(aq) = Sr3(PO4)2(s) + H2O(l) =>
3 Sr(OH)2(aq) + 2 H3PO4(aq) = Sr3(PO4)2(s) + 6 H2O(l)
KOH + HBr = KBr + H2O =>
KOH + HBr = KBr + H2O
C5H12O6 + KMnO4 + H2SO4 = CO2 + MnSO4 + K2SO4 + H2O =>
C5H12O6 + 4 KMnO4 + 6 H2SO4 = 5 CO2 + 4 MnSO4 + 2 K2SO4 + 12 H2O
Mg + O = MgO =>
Mg + O = MgO
H + F = HF =>
H + F = HF
Sn(OH)2 + NaOH = Na2[Sn(OH)4] =>
Sn(OH)2 + 2 NaOH = Na2[Sn(OH)4]
H + F = HF =>
H + F = HF
NaOH + NH4Br = NaBr + NH3 + H2O =>
NaOH + NH4Br = NaBr + NH3 + H2O
ZnSO4 + HCl = ZnCl2 + H2SO4 =>
ZnSO4 + 2 HCl = ZnCl2 + H2SO4
K + F = KF =>
K + F = KF
NaIO3 + Na2S2O8 + NaOH = Na3H2IO6 + Na2SO4 + H2O =>
NaIO3 + Na2S2O8 + 4 NaOH = Na3H2IO6 + 2 Na2SO4 + H2O
MnCl2 + NaBiO3 + HNO3 = HMnO4 + Bi(NO3)3 + NaNO3 + Cl2 + H2O =>
2 MnCl2 + 7 NaBiO3 + 28 HNO3 = 2 HMnO4 + 7 Bi(NO3)3 + 7 NaNO3 + 2 Cl2 + 13 H2O
C6H5CH2CH3 + O2 = CO2 + H2O =>
2 C6H5CH2CH3 + 21 O2 = 16 CO2 + 10 H2O
N + H2 = NH4 =>
N + 2 H2 = NH4
Mg3(PO4)2 + HNO3 = Mg(H2PO4)2 + Mg(NO3)2 =>
Mg3(PO4)2 + 4 HNO3 = Mg(H2PO4)2 + 2 Mg(NO3)2
Cd(NO3)2 + NH4Cl = CdCl2 + NH4NO3 =>
Cd(NO3)2 + 2 NH4Cl = CdCl2 + 2 NH4NO3
HPO4 = P2O7 + H2O =>
2 HPO4 = P2O7 + H2O
Ca(H2PO4)2 = CaHPO4 + H3PO4 =>
Ca(H2PO4)2 = CaHPO4 + H3PO4
Fe3O4 + H2S = Fe3S4 + H2O =>
Fe3O4 + 4 H2S = Fe3S4 + 4 H2O
K2CO3(s) + HCl(l) = KCl(s) + H2O(l) + CO2 =>
K2CO3(s) + 2 HCl(l) = 2 KCl(s) + H2O(l) + CO2
Xe + F = XeF2 =>
Xe + 2 F = XeF2
HNO3 + NO = NO2 + H2O =>
2 HNO3 + NO = 3 NO2 + H2O
Ni + O2 = Ni2O2 =>
2 Ni + O2 = Ni2O2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
NaHCO3 + HCl = NaCl + H2O + CO2 =>
NaHCO3 + HCl = NaCl + H2O + CO2
Zn + HBrO3 = Zn(BrO3)2 + H2 =>
Zn + 2 HBrO3 = Zn(BrO3)2 + H2
Ca + Sn(OH)4 = Sn + Ca(OH)2 =>
2 Ca + Sn(OH)4 = Sn + 2 Ca(OH)2
Ni + O2 = Ni2O2 =>
2 Ni + O2 = Ni2O2
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