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2 Cr + 6 HOH = 2 Cr(OH)3 + 3 H2
NaN3(s) = Na(s) + N2(g) =>
2 NaN3(s) = 2 Na(s) + 3 N2(g)
C2H5OH + CuO = C2H5COOH + H2O + Cu =>
3 C2H5OH + 4 CuO = 2 C2H5COOH + 3 H2O + 4 Cu
H2SO4 + Si = SiO2(s) + SO2(g) + H2O =>
2 H2SO4 + Si = SiO2(s) + 2 SO2(g) + 2 H2O
Cr(OH)3 + NaOH = Na[Cr(OH)4] =>
Cr(OH)3 + NaOH = Na[Cr(OH)4]
Al + HIO4 = Al(IO4)3 + H2 =>
2 Al + 6 HIO4 = 2 Al(IO4)3 + 3 H2
CaO + SiO2 + H2O = CaH2SiO4 =>
CaO + SiO2 + H2O = CaH2SiO4
Al4C3 + HCl = AlCl3 + CH4(g) =>
Al4C3 + 12 HCl = 4 AlCl3 + 3 CH4(g)
I2(g) = I(g) =>
I2(g) = 2 I(g)
PbO + H2SO4 + CaCl2 = PbCl4Ca + CaSO4 + H2O =>
PbO + H2SO4 + 2 CaCl2 = PbCl4Ca + CaSO4 + H2O
Si4H10 + O2 = SiO2 + H2O =>
2 Si4H10 + 13 O2 = 8 SiO2 + 10 H2O
H4P2O5 + Mg(OH)2 = Mg2(P2O5) + H2O =>
H4P2O5 + 2 Mg(OH)2 = Mg2(P2O5) + 4 H2O
(a)C4H10(l) + O2(g) = CO2(g) + H2O(l) =>
2(a)C4H10(l) + 13 O2(g) = 8 CO2(g) + 10 H2O(l)
CsI + Br2 = CsBr + I2 =>
2 CsI + Br2 = 2 CsBr + I2
Fe(NH)2(SO4)2 + Zn = Zn(NH)2(SO4)2 + Fe =>
Fe(NH)2(SO4)2 + Zn = Zn(NH)2(SO4)2 + Fe
C2H5OH + K2Cr2O7 + KOH + H2O = CH3COOK + K3[Cr(OH)6] =>
3 C2H5OH + 2 K2Cr2O7 + 11 KOH + 2 H2O = 3 CH3COOK + 4 K3[Cr(OH)6]
(CH3CH2NH3)2CO3 = CH3CH2NH2 + CO2 + H2O =>
(CH3CH2NH3)2CO3 = 2 CH3CH2NH2 + CO2 + H2O
MnCl2 + K4Fe(CN)6 = KCl + Mn2Fe(CN)6 =>
2 MnCl2 + K4Fe(CN)6 = 4 KCl + Mn2Fe(CN)6
BaC2O4 + K2Cr2O7 + H2O = BaCrO4 + K2C2O4 + H2C2O4 =>
2 BaC2O4 + K2Cr2O7 + H2O = 2 BaCrO4 + K2C2O4 + H2C2O4
HClO4(l) + P2O5(s) = Cl2O7(l) + HPO3(s) =>
2 HClO4(l) + P2O5(s) = Cl2O7(l) + 2 HPO3(s)
P4 + O2 + H2O = H3PO4 =>
P4 + 5 O2 + 6 H2O = 4 H3PO4
Al2O3 + H2S = Al(HS)3 + H2O =>
Al2O3 + 6 H2S = 2 Al(HS)3 + 3 H2O
C6H5NH2 + HCl = C6H5NH3Cl =>
C6H5NH2 + HCl = C6H5NH3Cl
Zn(NO3)2 + Mg(OH)2 = Zn(OH)2 + Mg(NO3)2 =>
Zn(NO3)2 + Mg(OH)2 = Zn(OH)2 + Mg(NO3)2
C6H5COOHCH3CH2CHOHNa + CH3CH2CHOH + CH3CH2NH2 + Cl2 = C6H5CH2CHNH2CH2CH3 + NaCl + H2O =>
16 C6H5COOHCH3CH2CHOHNa + 24 CH3CH2CHOH + 29 CH3CH2NH2 + 8 Cl2 = 29 C6H5CH2CHNH2CH2CH3 + 16 NaCl + 72 H2O
C10H16 + Cl2 = C + HCl =>
C10H16 + 8 Cl2 = 10 C + 16 HCl
Fe + H2SO4 + H2O = [Fe(H2O)6]2(SO4)3 + SO2 =>
2 Fe + 6 H2SO4 + 6 H2O = [Fe(H2O)6]2(SO4)3 + 3 SO2
C2H6 + O2 = CO(g) + H2O(l) =>
2 C2H6 + 5 O2 = 4 CO(g) + 6 H2O(l)
K2(Cr2O7) + SNCl2 + HCl = CrCl3 + SNCl4 + KCl + H2O =>
K2(Cr2O7) + 3 SNCl2 + 14 HCl = 2 CrCl3 + 3 SNCl4 + 2 KCl + 7 H2O
Mg + HNO3 + NaOH = Mg(NaOH)2HNO3 =>
Mg + HNO3 + 2 NaOH = Mg(NaOH)2HNO3
Zn(NO3)2 + Mg(OH)2 = Zn(OH)2 + Mg(NO3)2 =>
Zn(NO3)2 + Mg(OH)2 = Zn(OH)2 + Mg(NO3)2
Na(a) + H2O(l) = H2(g) + NaOH(aq) =>
2 Na(a) + 2 H2O(l) = H2(g) + 2 NaOH(aq)
Cr + Br2 = CrBr3 =>
2 Cr + 3 Br2 = 2 CrBr3
Ge(OH)4 + H2CO3 = ((Ge(OH))2)(CO3)3 + H2O =>
2 Ge(OH)4 + 3 H2CO3 = ((Ge(OH))2)(CO3)3 + 6 H2O
BeCO3 + HNO3 = BeNO3 + HCO3 =>
BeCO3 + HNO3 = BeNO3 + HCO3
NaNO3Na3PO4 = NaPO4Na3NO3 =>
NaNO3Na3PO4 = NaPO4Na3NO3
C5H10O5 + H2 = C14H30 + H2O =>
14 C5H10O5 + 75 H2 = 5 C14H30 + 70 H2O
MnO4{-2} + H2O + {-} = MnO2 + OH{-} =>
MnO4{-2} + 2 H2O + 2e = MnO2 + 4 OH{-}
AlN + NaOH = NaN + AlOH =>
AlN + NaOH = NaN + AlOH
AgClO3 + (NH4)2S = AgS + (NH4)2ClO3 =>
AgClO3 + (NH4)2S = AgS + (NH4)2ClO3
Zn + HNO3 = Zn(NO3)2 + NO2(g) + H2O =>
Zn + 4 HNO3 = Zn(NO3)2 + 2 NO2(g) + 2 H2O
HCOOH + Ca(OH)2 = H2O + (HCOO)2Ca =>
2 HCOOH + Ca(OH)2 = 2 H2O + (HCOO)2Ca
Pb + Cl = PbCl6 =>
Pb + 6 Cl = PbCl6
IBr = I2 + Br2 =>
2 IBr = I2 + Br2
Na2 + CO = NaC + O =>
Na2 + 2 CO = 2 NaC + 2 O
C2H5OH + O2 = CH3COOH + H2OH =>
6 C2H5OH + 5 O2 = 6 CH3COOH + 4 H2OH
KOH + H3PO4 = H3PO4OH + K =>
KOH + H3PO4 = H3PO4OH + K
Al(s) + MnO4{-}(aq) + H2O(l) = MnO2(s) + Al(OH)4{-}(aq) =>
Al(s) + MnO4{-}(aq) + 2 H2O(l) = MnO2(s) + Al(OH)4{-}(aq)
KCl(aq) + F2(g) = F2Cl(aq) + K(aq) =>
KCl(aq) + F2(g) = F2Cl(aq) + K(aq)
C12H26 = C6H14 + C4H8 =>
2 C12H26 = 2 C6H14 + 3 C4H8
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