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2 Al(OH)3 + 3 H2SiO4 = Al2(SiO4)3 + 6 H2O
Cu2S + O2 = CuO + SO4 =>
Cu2S + 3 O2 = 2 CuO + SO4
H2S(v) + PbCl2(g) = PbS(g) + HCl(g) =>
H2S(v) + PbCl2(g) = PbS(g) + 2 HCl(g)
Cr + NiSO4 = Ni + Cr(SO4)2 =>
Cr + 2 NiSO4 = 2 Ni + Cr(SO4)2
Pb(OH)4 + H = H2O + Pb =>
Pb(OH)4 + 4 H = 4 H2O + Pb
CO2 + Na2O = NaC + O2 =>
4 CO2 + 2 Na2O = 4 NaC + 5 O2
NaO + HCl = NaCl + H2O2 =>
2 NaO + 2 HCl = 2 NaCl + H2O2
H + Au + Cl = HAuCl4 =>
H + Au + 4 Cl = HAuCl4
FeCl2 + Cl2 = FeCl3 =>
2 FeCl2 + Cl2 = 2 FeCl3
Y + XZ = XY + Z =>
Y + XZ = XY + Z
Ba(CH3COO)2 + K2CO3 = BaCO3 + KCH3COO =>
Ba(CH3COO)2 + K2CO3 = BaCO3 + 2 KCH3COO
K2Cr2O7 + CaCl2 + H2SO4 = Cr2(CrO4)3 + K2SO4 + CaSO4 + Cl2 + H2O =>
5 K2Cr2O7 + 6 CaCl2 + 11 H2SO4 = 2 Cr2(CrO4)3 + 5 K2SO4 + 6 CaSO4 + 6 Cl2 + 11 H2O
K2Cr2O7 + (CO2H)2 + H2SO4 = K2SO4 + Cr2(SO4)3 + H2O + CO2 =>
K2Cr2O7 + 3(CO2H)2 + 4 H2SO4 = K2SO4 + Cr2(SO4)3 + 7 H2O + 6 CO2
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
CH3CH(OH)CH(OH)CH3 + HCl = CH3CH(Cl)CH(Cl)CH3 + H2O =>
CH3CH(OH)CH(OH)CH3 + 2 HCl = CH3CH(Cl)CH(Cl)CH3 + 2 H2O
Cr2O3 + Al = Al2O3 + Cr(l) =>
Cr2O3 + 2 Al = Al2O3 + 2 Cr(l)
C2H5Cl2 + Cl2 = C2H3Cl2 + HCl =>
C2H5Cl2 + Cl2 = C2H3Cl2 + 2 HCl
Br2 + O = Br2O =>
Br2 + O = Br2O
H2SO4 + CH3COOH = H2S + H2CO3 =>
H2SO4 + CH3COOH = H2S + 2 H2CO3
CrSO4 + NaMnO4 + H2SO4 = Cr2(SO4)3 + MnSO4 + Na2SO4 + H2O =>
10 CrSO4 + 2 NaMnO4 + 8 H2SO4 = 5 Cr2(SO4)3 + 2 MnSO4 + Na2SO4 + 8 H2O
Ag + HNO3 = AgNO3 + NO2 + H2O =>
Ag + 2 HNO3 = AgNO3 + NO2 + H2O
H2SO3 + FeS = FeSO4 + H2S =>
4 H2SO3 + 3 FeS = 3 FeSO4 + 4 H2S
XCHCH2 + KMnO4 + KOH = XCOOK + K2CO3 + K2MnO4 + H2O =>
XCHCH2 + 10 KMnO4 + 13 KOH = XCOOK + K2CO3 + 10 K2MnO4 + 8 H2O
K2CO3 + H2O = KHCO3 + KOH =>
K2CO3 + H2O = KHCO3 + KOH
(ZnOH)3PO4 + H3PO4 = Zn(H2PO4)2 + H2O =>
(ZnOH)3PO4 + 5 H3PO4 = 3 Zn(H2PO4)2 + 3 H2O
Ba(OH)2 + HCl = BaCl2 + H2O =>
Ba(OH)2 + 2 HCl = BaCl2 + 2 H2O
Zn + H2SO3 = Zn(SO3)2 + H2 =>
Zn + 2 H2SO3 = Zn(SO3)2 + 2 H2
HBr(aq) + Mg(OH)2(s) = MgBr2(aq) + H2O(l) =>
2 HBr(aq) + Mg(OH)2(s) = MgBr2(aq) + 2 H2O(l)
CH3COOH + NaOH = NaCH3COOH + H2O + CO2 =>
9 CH3COOH + 8 NaOH = 8 NaCH3COOH + 6 H2O + 2 CO2
Be + NaOH + H2O + O2 = Na2[Be(OH)4] =>
2 Be + 4 NaOH + 2 H2O + O2 = 2 Na2[Be(OH)4]
HNO3 + H2SO3 = H2SO4 + HNO2 =>
HNO3 + H2SO3 = H2SO4 + HNO2
Na2O2 + FeSO4 + H2O = Fe(OH)3 + Na2SO4 + H2O2 =>
2 Na2O2 + 2 FeSO4 + 4 H2O = 2 Fe(OH)3 + 2 Na2SO4 + H2O2
H3AsO4 + NaOH = H2O + Na3AsO4 =>
H3AsO4 + 3 NaOH = 3 H2O + Na3AsO4
TiCl4 + O2 = TiO2 + Cl2 =>
TiCl4 + O2 = TiO2 + 2 Cl2
Si + H2SO4 = SiSO4 + H2O + SO2 =>
Si + 2 H2SO4 = SiSO4 + 2 H2O + SO2
H2SO4 + NH4OH = H2O + (NH4)2SO4 =>
H2SO4 + 2 NH4OH = 2 H2O + (NH4)2SO4
NaNO2 + KI + CH3COOH + CHCl3 = I2 + NO + CH3COONa + CH3COOK + HCl =>
2 NaNO2 + 6 KI + 7 CH3COOH + 2 CHCl3 = 3 I2 + 2 NO + 2 CH3COONa + 6 CH3COOK + 6 HCl
HNO2 + KI + CH3COOH = NO + I2 + CH3COOK + H2O =>
2 HNO2 + 2 KI + 2 CH3COOH = 2 NO + I2 + 2 CH3COOK + 2 H2O
HCl + NaOH = HNaOH + Cl =>
HCl + NaOH = HNaOH + Cl
CH3CH2OH = CH3CH2OCH2CH3 + H2O =>
2 CH3CH2OH = CH3CH2OCH2CH3 + H2O
HI + KOH = KI + H2O =>
HI + KOH = KI + H2O
KNO3(s) + S(s) + C7H4O(s) = CO2(g) + K2S(s) + N2(g) + H2O(g) =>
10 KNO3(s) + 5 S(s) + 2 C7H4O(s) = 14 CO2(g) + 5 K2S(s) + 5 N2(g) + 4 H2O(g)
Ba(OH)2 + K2Cr2O7 = BaCr2O7 + KOH =>
Ba(OH)2 + K2Cr2O7 = BaCr2O7 + 2 KOH
CH3CH2CH2COOCH3 + KOH = CH3CH2CH2COOK + CH3OH =>
CH3CH2CH2COOCH3 + KOH = CH3CH2CH2COOK + CH3OH
H2SO4 + K2Cr2O7 + CaCl2 = K2SO4 + CaSO4 + Cr2(SO4)3 + H2O + Cl2 =>
7 H2SO4 + K2Cr2O7 + 3 CaCl2 = K2SO4 + 3 CaSO4 + Cr2(SO4)3 + 7 H2O + 3 Cl2
Fe2O3 + NH3 = Fe + HNO3 + H2O =>
4 Fe2O3 + 3 NH3 = 8 Fe + 3 HNO3 + 3 H2O
NaNO3(aq) + BaCl2(s) = NaCl(aq) + Ba(NO3)2(aq) =>
2 NaNO3(aq) + BaCl2(s) = 2 NaCl(aq) + Ba(NO3)2(aq)
Zn(aq) + H2SO4(aq) = Zn(SO4)2(aq) + H2(g) =>
Zn(aq) + 2 H2SO4(aq) = Zn(SO4)2(aq) + 2 H2(g)
NaOH + Al(NO3)3 = NaAlO2 + NaNO3 + H2O =>
4 NaOH + Al(NO3)3 = NaAlO2 + 3 NaNO3 + 2 H2O
Ca + Na = Ca3Na2 =>
3 Ca + 2 Na = Ca3Na2
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