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Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
HNO3(aq) + BaCl2(aq) = HCl(aq) + Ba(NO3)2(aq) =>
2 HNO3(aq) + BaCl2(aq) = 2 HCl(aq) + Ba(NO3)2(aq)
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Mg + Cr3Cl = MgCr3 + Cl2 =>
2 Mg + 2 Cr3Cl = 2 MgCr3 + Cl2
MgO + P2O5 = MgO5 + P2 =>
5 MgO + 4 P2O5 = 5 MgO5 + 4 P2
ZnS + O2 = ZnO2 + S2O2 =>
2 ZnS + 3 O2 = 2 ZnO2 + S2O2
Au2O3 + Cl2 = Au + ClO3 =>
2 Au2O3 + Cl2 = 4 Au + 2 ClO3
Mn + Cr2(SO4)3 = Cr + Mn(SO4)3 =>
Mn + Cr2(SO4)3 = 2 Cr + Mn(SO4)3
CaO + H3PO4 = Ca + (PO4)2 + H2O =>
3 CaO + 2 H3PO4 = 3 Ca + (PO4)2 + 3 H2O
NaMnO4 + KNO2 + NaOH = Na2MnO4 + KNO3 + H2O =>
2 NaMnO4 + KNO2 + 2 NaOH = 2 Na2MnO4 + KNO3 + H2O
Mn + C = Mn3C =>
3 Mn + C = Mn3C
Ba2 + H2S = BaS + H3 =>
3 Ba2 + 6 H2S = 6 BaS + 4 H3
CaCo3 = Ca + Co2 =>
2 CaCo3 = 2 Ca + 3 Co2
H2 + CO2 = HCOOH =>
H2 + CO2 = HCOOH
Pb2O4 + H2O = Pb(OH)4 =>
Pb2O4 + 4 H2O = 2 Pb(OH)4
CuSO4 + H2O + Fe = FeSO4 + CuO + H2 =>
CuSO4 + H2O + Fe = FeSO4 + CuO + H2
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Sn(B4O7)2 + H2(SO4) = Sn(SO4)2 + H2(B4O7) =>
Sn(B4O7)2 + 2 H2(SO4) = Sn(SO4)2 + 2 H2(B4O7)
Pb(OH)2 + NH3 = PbNH3 + OH =>
Pb(OH)2 + NH3 = PbNH3 + 2 OH
Co2 + OH = Co(OH)2 =>
Co2 + 4 OH = 2 Co(OH)2
Pb(No3)2(aq) + LiCl(aq) = LiNo3(s) + PbCl2(aq) =>
Pb(No3)2(aq) + 2 LiCl(aq) = 2 LiNo3(s) + PbCl2(aq)
Pb(CH3COO)2 + Na3PO4 = PbPO4 + Na3(CH3COO)2 =>
Pb(CH3COO)2 + Na3PO4 = PbPO4 + Na3(CH3COO)2
H2SO4(aq) + HI(aq) = H2S(g) + I2(g) + H2O(l) =>
H2SO4(aq) + 8 HI(aq) = H2S(g) + 4 I2(g) + 4 H2O(l)
NaHSO4 + Mg = Na2SO4 + MgSO4 + H2S + H2O =>
10 NaHSO4 + 4 Mg = 5 Na2SO4 + 4 MgSO4 + H2S + 4 H2O
C + K2Cr2O7 + H2SO4 = CO2 + K2SO4 + Cr2(SO4)3 + H2O =>
3 C + 2 K2Cr2O7 + 8 H2SO4 = 3 CO2 + 2 K2SO4 + 2 Cr2(SO4)3 + 8 H2O
CH3OH(g) = CH2O(g)H2(g) =>
CH3OH(g) = CH2O(g)H2(g)
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
Ga2O3 + Al = AlO3 + Ga =>
Ga2O3 + Al = AlO3 + 2 Ga
NaF + Ca(OH)2 = CaF2 + NaOH =>
2 NaF + Ca(OH)2 = CaF2 + 2 NaOH
CaO + Fe2O3 = Ca(FeO2)2 =>
CaO + Fe2O3 = Ca(FeO2)2
CH3CO2NH4 + KI = NH4I + KCH3CO2 =>
CH3CO2NH4 + KI = NH4I + KCH3CO2
C2H2O4 = C2O4 + H =>
C2H2O4 = C2O4 + 2 H
NH4OH + O2 = NH2 + H2O =>
4 NH4OH + O2 = 4 NH2 + 6 H2O
H2O + N2O4 + O2 = HNO3 =>
2 H2O + 2 N2O4 + O2 = 4 HNO3
K2CrO4 + Fe(NO3)3 = FeCrO4 + K2(NO3)3 =>
K2CrO4 + Fe(NO3)3 = FeCrO4 + K2(NO3)3
C5H7O2N + O2 = CO2 + H2O + NO =>
4 C5H7O2N + 25 O2 = 20 CO2 + 14 H2O + 4 NO
Si(s) + Cl2(g) = SiCl4(l) =>
Si(s) + 2 Cl2(g) = SiCl4(l)
S + CO3 = SC2O6 =>
S + 2 CO3 = SC2O6
C9H11NO2 + H2O + NaI = C9H13N + I2 + NaOH =>
C9H11NO2 + 4 H2O + 6 NaI = C9H13N + 3 I2 + 6 NaOH
Al2Si2O7 + H2SO4 = Al2S3O12 + SiO2 + H2O =>
Al2Si2O7 + 3 H2SO4 = Al2S3O12 + 2 SiO2 + 3 H2O
CH3NH2 + HNO2 = CH3OH + N2 + H2O =>
CH3NH2 + HNO2 = CH3OH + N2 + H2O
P + O2 = P4O10 =>
4 P + 5 O2 = P4O10
Cl2 + Ca = Cl2Ca =>
Cl2 + Ca = Cl2Ca
NaN3(s) = Na(s) + N2(g) =>
2 NaN3(s) = 2 Na(s) + 3 N2(g)
CaS + (NH4)3PO4 = CaPO4 + (NH4)3S =>
CaS + (NH4)3PO4 = CaPO4 + (NH4)3S
FeS + HNO3 = Fe(NO3)3 + NO + S + H2O =>
FeS + 4 HNO3 = Fe(NO3)3 + NO + S + 2 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
NH4F + CaSO4 = (NH4)2SO4 + CaF2 =>
2 NH4F + CaSO4 = (NH4)2SO4 + CaF2
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Sn(ClO3)2 + Na2CrO4 = SnCrO4 + Na2(ClO3)2 =>
Sn(ClO3)2 + Na2CrO4 = SnCrO4 + Na2(ClO3)2
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