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CaCO3 = CaOCO2
FeCl3 + NaOH = Fe(OH)3 + NaCl =>
FeCl3 + 3 NaOH = Fe(OH)3 + 3 NaCl
(NH4)2S + HCl = NH4Cl + H2S =>
(NH4)2S + 2 HCl = 2 NH4Cl + H2S
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
Mg(NO3)2(aq) + K(s) = Mg(s) + KNO3(aq) =>
Mg(NO3)2(aq) + 2 K(s) = Mg(s) + 2 KNO3(aq)
Na + KOH = NaOH + K =>
Na + KOH = NaOH + K
Cu(CH3COO)2 + Na2CrO4 = CuCrO4 + Na2(CH3COO)2 =>
Cu(CH3COO)2 + Na2CrO4 = CuCrO4 + Na2(CH3COO)2
P4 + O2 = P4O10 =>
P4 + 5 O2 = P4O10
HBr + NaOH = NaBr + H2O =>
HBr + NaOH = NaBr + H2O
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CH3CH2OH + O2 = CO2 + H2O =>
CH3CH2OH + 3 O2 = 2 CO2 + 3 H2O
C3H6 + O2 = CO2 + H2O =>
2 C3H6 + 9 O2 = 6 CO2 + 6 H2O
K2Cr2O7 + H2SO4 + N2H4 = K2SO4 + N2 + H2O + Cr2(SO4)3 =>
2 K2Cr2O7 + 8 H2SO4 + 3 N2H4 = 2 K2SO4 + 3 N2 + 14 H2O + 2 Cr2(SO4)3
MnO4{-} + C7H6O3 + H{+} = Mn2{+} + CO2 + H2O =>
56 MnO4{-} + 13 C7H6O3 + 84 H{+} = 28 Mn2{+} + 91 CO2 + 81 H2O
K2SO4 + Na2SO4 + MnSO4 + CO2 + H2O = Na2C2O4 + KMnO4 + H2SO4 =>
K2SO4 + 5 Na2SO4 + 2 MnSO4 + 10 CO2 + 8 H2O = 5 Na2C2O4 + 2 KMnO4 + 8 H2SO4
HCI + CaCO3 = CaCI2 + H2O + CO =>
2 HCI + CaCO3 = CaCI2 + H2O + 2 CO
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
CaCO3H2SO4 = CaSO4H2CO3 =>
CaCO3H2SO4 = CaSO4H2CO3
Cu + Br = CuBr =>
Cu + Br = CuBr
Mn + HNO3 = Mn(NO3)2 + H2 =>
Mn + 2 HNO3 = Mn(NO3)2 + H2
Na2B4O7*10H2O(borax) + HCl = NaCl + H3BO3 + H2O =>
Na2B4O7*10H2O(borax) + 2 HCl = 2 NaCl + 4 H3BO3 + 5 H2O
CaCO3H2OCO2 = Ca(HCO3)2 =>
CaCO3H2OCO2 = Ca(HCO3)2
H2 = H11 =>
11 H2 = 2 H11
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
Zn + O2 = ZnO =>
2 Zn + O2 = 2 ZnO
Mn + ZnSO4 = MnSO4 + Zn =>
Mn + ZnSO4 = MnSO4 + Zn
Na2CO3 + HC2H3O2 = NaC2H3O2 + CO2 + H2O =>
Na2CO3 + 2 HC2H3O2 = 2 NaC2H3O2 + CO2 + H2O
P4 + O2 = P4O10 =>
P4 + 5 O2 = P4O10
Ca(OH)2 + NH4Cl = NH4OH + CaCl2 =>
Ca(OH)2 + 2 NH4Cl = 2 NH4OH + CaCl2
Zn(NO3)2 + Al = Zn + Al(NO3) =>
Zn(NO3)2 + 2 Al = Zn + 2 Al(NO3)
BeCl2 + O2 = Be(ClO3)2 =>
BeCl2 + 3 O2 = Be(ClO3)2
HCl + Cr = CrCl2 + H2 =>
2 HCl + Cr = CrCl2 + H2
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
F2 + H2O = HF + O2 =>
2 F2 + 2 H2O = 4 HF + O2
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
Ni(s) + SnCl2(aq) = NiCl2(aq) + Sn(s) =>
Ni(s) + SnCl2(aq) = NiCl2(aq) + Sn(s)
CH3CHONaCH3 + CH3Br = CH3CH2Br + NaOCH3 =>
CH3CHONaCH3 + 2 CH3Br = 2 CH3CH2Br + NaOCH3
HCOOH + K2O = H2O + HCOOK =>
2 HCOOH + K2O = H2O + 2 HCOOK
CaHPO4 + KOH = Ca(OH)2 + K3PO4 + H2O =>
CaHPO4 + 3 KOH = Ca(OH)2 + K3PO4 + H2O
KMnO4 + ZnSO4 = ZnMnO4 + KSO4 =>
KMnO4 + ZnSO4 = ZnMnO4 + KSO4
Cr(OH)3 + H2O2 + NaOH = Na2(CrO4) + H2O =>
2 Cr(OH)3 + 3 H2O2 + 4 NaOH = 2 Na2(CrO4) + 8 H2O
HClO3 + H2O = ClO4 + H3 =>
HClO3 + H2O = ClO4 + H3
Fe(OH)3 + NaI = FeI3 + NaOH =>
Fe(OH)3 + 3 NaI = FeI3 + 3 NaOH
Cu + KSCN = Cu(SCN)2 + K =>
Cu + 2 KSCN = Cu(SCN)2 + 2 K
O2 + SO2 = SO3 =>
O2 + 2 SO2 = 2 SO3
Cr2O3 + KOH + O2 = K2CrO4 + H2O =>
2 Cr2O3 + 8 KOH + 3 O2 = 4 K2CrO4 + 4 H2O
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
[Cu(NH3)4]Cl2 + Ca(OH)2 = Cu(OH)2 + CaCl2 + NH3 =>
[Cu(NH3)4]Cl2 + Ca(OH)2 = Cu(OH)2 + CaCl2 + 4 NH3
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
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