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2 H2 + O2 = 2 H2O
C20H42 = C10H22 + C10H20 =>
C20H42 = C10H22 + C10H20
Cr2(CO3)3 + HCl = CrCl3 + CO2 + H2O =>
Cr2(CO3)3 + 6 HCl = 2 CrCl3 + 3 CO2 + 3 H2O
C20H42 = C12H26 + C2H4 =>
C20H42 = C12H26 + 4 C2H4
LiCl(s) + H2SO4(aq) = Li2SO4 + HCl =>
2 LiCl(s) + H2SO4(aq) = Li2SO4 + 2 HCl
CH4 + NH3 + O2 = HCN + H2O =>
2 CH4 + 2 NH3 + 3 O2 = 2 HCN + 6 H2O
HI(aq) + Sr(OH)2 = SrI2(aq) + H2O(l) =>
2 HI(aq) + Sr(OH)2 = SrI2(aq) + 2 H2O(l)
NaHN + H2SO4 = Na2SO4 + (N2H5)2SO4 =>
4 NaHN + 3 H2SO4 = 2 Na2SO4 + (N2H5)2SO4
BrO3{-} + S2O3{2-} + H{+} = Br2 + S4O6{2-} + H2O =>
2 BrO3{-} + 10 S2O3{2-} + 12 H{+} = Br2 + 5 S4O6{2-} + 6 H2O
Zn(s) + S8 = ZnS =>
8 Zn(s) + S8 = 8 ZnS
CaHPO4 + H2O = CaO + H3PO4 =>
CaHPO4 + H2O = CaO + H3PO4
Ba(OH)2(s) + HCl(aq) = H2O(aq) + BaCl2(aq) =>
Ba(OH)2(s) + 2 HCl(aq) = 2 H2O(aq) + BaCl2(aq)
C20H42 = C8H18 + C2H4 =>
C20H42 = C8H18 + 6 C2H4
CH3CHOHCH3 + CH3COOH = CH3COOCH2CH3 + H2O =>
2 CH3CHOHCH3 + 3 CH3COOH = 3 CH3COOCH2CH3 + 2 H2O
H(C2H3O2) + Na(OH) = Na(C2H3O2) + H2O =>
H(C2H3O2) + Na(OH) = Na(C2H3O2) + H2O
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
Cu(NO3)2 + NaHO = Cu(OH)2 + NaNO3 =>
Cu(NO3)2 + 2 NaHO = Cu(OH)2 + 2 NaNO3
Mg3N2(s) + H2O = Mg(OH)2 + NH3(g) =>
Mg3N2(s) + 6 H2O = 3 Mg(OH)2 + 2 NH3(g)
C20H42 = C16H34 + C2H4 =>
C20H42 = C16H34 + 2 C2H4
NaHSO3 + KIO3 = I2 + K2SO4 + Na2SO4 + NaHSO4 + H2O =>
5 NaHSO3 + 2 KIO3 = I2 + K2SO4 + Na2SO4 + 3 NaHSO4 + H2O
(CH3)2CHBr + KOH = C4H8 + H2O + KBr =>
4(CH3)2CHBr + 4 KOH = 3 C4H8 + 4 H2O + 4 KBr
B + H = B5H9 =>
5 B + 9 H = B5H9
HNO3 = NO2 + O2 + H2O =>
4 HNO3 = 4 NO2 + O2 + 2 H2O
Se + P = SeP =>
Se + P = SeP
Fe2(SO4)3 + KCN = K3Fe(CN)6 + K2SO4 =>
Fe2(SO4)3 + 12 KCN = 2 K3Fe(CN)6 + 3 K2SO4
CO2 + H2O = C2H5OH + O2 =>
2 CO2 + 3 H2O = C2H5OH + 3 O2
VOSO4 + KMnO4 + KOH = K3VO4 + K2MnO4 + K2SO4 + H2O =>
VOSO4 + KMnO4 + 6 KOH = K3VO4 + K2MnO4 + K2SO4 + 3 H2O
Mn2O3 + NO2 + O2 = Mn(NO3)4 =>
2 Mn2O3 + 16 NO2 + 5 O2 = 4 Mn(NO3)4
HClO4(aq) + P4O10 = H3PO4 + Cl2O7 =>
12 HClO4(aq) + P4O10 = 4 H3PO4 + 6 Cl2O7
Ca3(PO4)2 + Mg = Ca3P2 + MgO =>
Ca3(PO4)2 + 8 Mg = Ca3P2 + 8 MgO
FeC3 + O2 = Fe2O3 + CO2 =>
4 FeC3 + 15 O2 = 2 Fe2O3 + 12 CO2
He + Ne = HeNe =>
He + Ne = HeNe
KMnO4 + H2SO4 + H2 = K2SO4 + MnSO4 + H2O =>
2 KMnO4 + 3 H2SO4 + 5 H2 = K2SO4 + 2 MnSO4 + 8 H2O
ZnCl2 + S(NH4)2 = Zn(NH4)2 + SCl2 =>
ZnCl2 + S(NH4)2 = Zn(NH4)2 + SCl2
Rb2SO4 = Rb + (SO4)2 =>
2 Rb2SO4 = 4 Rb + (SO4)2
CH3CH2OH + O2(g) = H2O + CH3COOH =>
CH3CH2OH + O2(g) = H2O + CH3COOH
K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O =>
10 K4Fe(CN)6 + 122 KMnO4 + 299 H2SO4 = 162 KHSO4 + 5 Fe2(SO4)3 + 122 MnSO4 + 60 HNO3 + 60 CO2 + 188 H2O
NH4OH + H2O2 = H2O + NH4NO3 =>
2 NH4OH + 4 H2O2 = 7 H2O + NH4NO3
FeCl2 + H2O2 + H2SO4 = FeCl3 + H2O + Fe2(SO4)3 =>
6 FeCl2 + 3 H2O2 + 3 H2SO4 = 4 FeCl3 + 6 H2O + Fe2(SO4)3
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
Cr2O7{-2} + H{+} + {-} = Cr{+3} + H2O =>
Cr2O7{-2} + 14 H{+} + 6e = 2 Cr{+3} + 7 H2O
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Ca(NO3)2(aq) + (NH4)2C2O4(aq) = CaC2O4 + NH4NO3 =>
Ca(NO3)2(aq) + (NH4)2C2O4(aq) = CaC2O4 + 2 NH4NO3
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Cu + SO2 = SCu2 + Cu2O =>
6 Cu + SO2 = SCu2 + 2 Cu2O
I2 + NO3 = IO3 + NO =>
I2 + 3 NO3 = 2 IO3 + 3 NO
S{-2} + I2 = I{-} + S =>
S{-2} + I2 = 2 I{-} + S
Na2S2O3 + I2 = Na2S4O6 + NaI =>
2 Na2S2O3 + I2 = Na2S4O6 + 2 NaI
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
K4Fe(CN)6 + H2SO4 + H2O = K2SO4 + FeSO4 + (NH4)2SO4 + CO =>
K4Fe(CN)6 + 6 H2SO4 + 6 H2O = 2 K2SO4 + FeSO4 + 3(NH4)2SO4 + 6 CO
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