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2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
Zn2 + H2SO4 = ZnSO4 + H2O + H2S =>
2 Zn2 + 5 H2SO4 = 4 ZnSO4 + 4 H2O + H2S
Cr(OH)3NaOH = NaCr(OH)4 =>
Cr(OH)3NaOH = NaCr(OH)4
Fe(OH)3 + Mg(NO3)2 = Fe(NO3)3 + Mg(OH)2 =>
2 Fe(OH)3 + 3 Mg(NO3)2 = 2 Fe(NO3)3 + 3 Mg(OH)2
BaCO3 + H3O{+} = Ba{2+} + H2CO3 + H2O =>
BaCO3 + 2 H3O{+} = Ba{2+} + H2CO3 + 2 H2O
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
KCl(aq) + CaS(aq) = KS(s) + CaCl(aq) =>
KCl(aq) + CaS(aq) = KS(s) + CaCl(aq)
HCl(aq) + NaOH(aq) = NaCl(aq) + H2O(l) =>
HCl(aq) + NaOH(aq) = NaCl(aq) + H2O(l)
Zn(CH3COO)2(H2O)2 + NaOH = ZnO + CH3COONa + H2O =>
Zn(CH3COO)2(H2O)2 + 2 NaOH = ZnO + 2 CH3COONa + 3 H2O
KAl(OH)4 + (NH4)2SO4 = Al(OH)3 + NH4OH + K2SO4 =>
2 KAl(OH)4 + (NH4)2SO4 = 2 Al(OH)3 + 2 NH4OH + K2SO4
K2Cr2O7 + H2SO4 + Na2SO3 = Cr2(SO4)3 + K2SO4 + Na2SO4 + H2O =>
K2Cr2O7 + 4 H2SO4 + 3 Na2SO3 = Cr2(SO4)3 + K2SO4 + 3 Na2SO4 + 4 H2O
Ca + P = Ca3P2 =>
3 Ca + 2 P = Ca3P2
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
(NH4)2CO3 + HCl = NH4 + CO3(HCl)2 =>
(NH4)2CO3 + 2 HCl = 2 NH4 + CO3(HCl)2
CuS + FeCl3 = CuCl2 + FeCl2 + S =>
CuS + 2 FeCl3 = CuCl2 + 2 FeCl2 + S
Mg3N2 + KMnO4 + H2SO4 = MnSO4 + MgSO4 + K2SO4 + NO2 + H2O =>
5 Mg3N2 + 14 KMnO4 + 36 H2SO4 = 14 MnSO4 + 15 MgSO4 + 7 K2SO4 + 10 NO2 + 36 H2O
P4 + SOCl2 = PCl3 + SO2 + SCl2 =>
P4 + 12 SOCl2 = 4 PCl3 + 6 SO2 + 6 SCl2
(CH3OCH3) + O2 = CO2 + H2O =>
(CH3OCH3) + 3 O2 = 2 CO2 + 3 H2O
BaCl2(aq) + NaSO4(aq) = BaSO4(s) + NaCl2(aq) =>
BaCl2(aq) + NaSO4(aq) = BaSO4(s) + NaCl2(aq)
H2SO4 + KMnO4 + KI = I2 + K2SO4 + MnO2 + H2O =>
4 H2SO4 + 2 KMnO4 + 6 KI = 3 I2 + 4 K2SO4 + 2 MnO2 + 4 H2O
H3Fe(CN)6 + NaOH = Na3Fe(CN)6 + H2O =>
H3Fe(CN)6 + 3 NaOH = Na3Fe(CN)6 + 3 H2O
K + HO = KOH =>
K + HO = KOH
HN3 + Cu = Cu3N2 + H2 =>
2 HN3 + 9 Cu = 3 Cu3N2 + H2
FeBr2 + Cl2 = FeCl2 + Br2 =>
FeBr2 + Cl2 = FeCl2 + Br2
NaOH + MgSO4 = Mg(OH)2 + Na2SO4 =>
2 NaOH + MgSO4 = Mg(OH)2 + Na2SO4
Zn + AgNO3(aq) = Ag + Zn(NO3)2 =>
Zn + 2 AgNO3(aq) = 2 Ag + Zn(NO3)2
Zn(NO3)2 + Ba(OH)2 = Zn(OH)2 + Ba(NO3)2 =>
Zn(NO3)2 + Ba(OH)2 = Zn(OH)2 + Ba(NO3)2
CIF + H2O = HCI + HF + O2 =>
2 CIF + 2 H2O = 2 HCI + 2 HF + O2
C2H3Cl + O3 = CO2 + H2O + HCl =>
3 C2H3Cl + 5 O3 = 6 CO2 + 3 H2O + 3 HCl
Fe(OH)3 + H3PO3 = Fe(PO3) + H2O =>
Fe(OH)3 + H3PO3 = Fe(PO3) + 3 H2O
HNO3(aq) + Cu(s) = Cu(NO3) + NO2 + H2O =>
2 HNO3(aq) + Cu(s) = Cu(NO3) + NO2 + H2O
Zn + Ba(OH)2 = Zn(OH) + Ba =>
2 Zn + Ba(OH)2 = 2 Zn(OH) + Ba
NaCl + NaOH = HCl + Na2O =>
NaCl + NaOH = HCl + Na2O
SiCl4 + H2O = H4SiO4 + HCl =>
SiCl4 + 4 H2O = H4SiO4 + 4 HCl
Hg + Cl = HgCl =>
Hg + Cl = HgCl
BaCl2(aq) + H2SO4(aq) = BaSO4 + HCl =>
BaCl2(aq) + H2SO4(aq) = BaSO4 + 2 HCl
NH3(g) + CO2(g) = CO(NH2)2(g) + H2O(l) =>
2 NH3(g) + CO2(g) = CO(NH2)2(g) + H2O(l)
MgBr2 + Li2SO4 = MgSO4 + LiBr =>
MgBr2 + Li2SO4 = MgSO4 + 2 LiBr
Fe(aq) + K4[Fe(CN)6](aq) = Fe4[Fe(CN)6]3(s) + K(aq) =>
4 Fe(aq) + 3 K4[Fe(CN)6](aq) = Fe4[Fe(CN)6]3(s) + 12 K(aq)
(CH2OH2)2CHOH(l) + O2(g) = CO2(g) + H2O(g) =>
(CH2OH2)2CHOH(l) + 4 O2(g) = 3 CO2(g) + 5 H2O(g)
H50 = H35 =>
7 H50 = 10 H35
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
Cu2O + H2CO3 = CuHCO3 + H2O =>
Cu2O + 2 H2CO3 = 2 CuHCO3 + H2O
NH4Cl + O2 = NH3 + HClO =>
2 NH4Cl + O2 = 2 NH3 + 2 HClO
K2Cr2O7 + H2C2O4 + H2SO4 = CO2 + Cr2(SO4)3 + H2O + K2SO4 =>
K2Cr2O7 + 3 H2C2O4 + 4 H2SO4 = 6 CO2 + Cr2(SO4)3 + 7 H2O + K2SO4
HCOONa + KMnO4 + H2SO4 = CO2 + H2O + K2SO4 + MnSO4 + NaSO4 =>
10 HCOONa + 6 KMnO4 + 19 H2SO4 = 10 CO2 + 24 H2O + 3 K2SO4 + 6 MnSO4 + 10 NaSO4
KNO3 + Cu(OH)2 = Cu(NO3)2 + KOH =>
2 KNO3 + Cu(OH)2 = Cu(NO3)2 + 2 KOH
CuI2 + H2SO4 = HI + CuSO4 =>
CuI2 + H2SO4 = 2 HI + CuSO4
CO2 + Cl2 = ClO2 + C =>
2 CO2 + Cl2 = 2 ClO2 + 2 C
SiF4 + K = KF + Si11 =>
11 SiF4 + 44 K = 44 KF + Si11
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