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K2Cr2O7 + 6 KI + 7 H2O = 2 K3[Cr(OH)6] + 3 I2 + 2 KOH
Si + SiCl4 + H2 = HCl3Si =>
Si + 3 SiCl4 + 2 H2 = 4 HCl3Si
HCl + Ba(OH)2 = BaClOH + H2O =>
HCl + Ba(OH)2 = BaClOH + H2O
Fe + H2O = Fe3O4 + H2 =>
3 Fe + 4 H2O = Fe3O4 + 4 H2
Co(C2H3O2)2 + (NH4)2S = CoS + NH4C2H3O2 =>
Co(C2H3O2)2 + (NH4)2S = CoS + 2 NH4C2H3O2
CaCO3 + H2O2 = CaO24H2O + CO2 + H2O =>
CaCO3 + 23 H2O2 = CaO24H2O + CO2 + 22 H2O
CaMg(CO3)2 + SiO2 + Ca(OH)2 = CaMg(SiO3)2 + CaCO3 + H2O =>
CaMg(CO3)2 + 2 SiO2 + 2 Ca(OH)2 = CaMg(SiO3)2 + 2 CaCO3 + 2 H2O
NaNO3 + PbO = Pb(NO3)2 + Na2O =>
2 NaNO3 + PbO = Pb(NO3)2 + Na2O
K2S + KMnO4 + H2SO4 = K2SO4 + MnSO4 + H2O =>
5 K2S + 8 KMnO4 + 12 H2SO4 = 9 K2SO4 + 8 MnSO4 + 12 H2O
(NH4)2CO3 + HCl = (NH4)CO3 + NH4HCl =>
(NH4)2CO3 + HCl = (NH4)CO3 + NH4HCl
NaBr + O2 = Na2O + Br2 =>
4 NaBr + O2 = 2 Na2O + 2 Br2
Fe + HCl = FeClCl2 + H2 =>
2 Fe + 6 HCl = 2 FeClCl2 + 3 H2
K2CO3 + HCl = CO2 + H2O + KCl =>
K2CO3 + 2 HCl = CO2 + H2O + 2 KCl
C + Ca = C2Ca =>
2 C + Ca = C2Ca
K2SBaCl2 = K2BaSCl2 =>
K2SBaCl2 = K2BaSCl2
(a)Li(s) + Cl2(g) = LiCl(s) =>
2(a)Li(s) + Cl2(g) = 2 LiCl(s)
CH3CHO + KMnO4 + KOH = CH3COOK + K2MnO4 + H2O =>
CH3CHO + 2 KMnO4 + 3 KOH = CH3COOK + 2 K2MnO4 + 2 H2O
HCl + NaClO + NaBr = H2O + NaCl + Br2 =>
2 HCl + NaClO + 2 NaBr = H2O + 3 NaCl + Br2
Pb(NO3) + NaOH = PbOH + NaNO3 =>
Pb(NO3) + NaOH = PbOH + NaNO3
CH3COOH + Al(SO4)2 = CH3(SO4)2 + AlCOOH =>
CH3COOH + Al(SO4)2 = CH3(SO4)2 + AlCOOH
H2BO3 + C2H6O = H2O + CO2 + BO =>
6 H2BO3 + C2H6O = 9 H2O + 2 CO2 + 6 BO
O2N + H2O = HO3N + ON =>
3 O2N + H2O = 2 HO3N + ON
K2 = K4 =>
2 K2 = K4
Fe + Li2O = Li + FeO2 =>
Fe + 2 Li2O = 4 Li + FeO2
CH3CHO + H2O = CH3COOH + H2 =>
CH3CHO + H2O = CH3COOH + H2
B + F2 = BF3 =>
2 B + 3 F2 = 2 BF3
PbSO4(s) + S = PbS(s) + SO4 =>
PbSO4(s) + S = PbS(s) + SO4
Ca2CO3 + H = Ca + H2O + CO =>
Ca2CO3 + 4 H = 2 Ca + 2 H2O + CO
PbO2 + MnSO4 + H3PO4 = Pb3(PO4)2 + HMnO4 + H2SO4 + H2O =>
15 PbO2 + 6 MnSO4 + 10 H3PO4 = 5 Pb3(PO4)2 + 6 HMnO4 + 6 H2SO4 + 6 H2O
ZnCl2 + CuSO4 = Zn(SO4) + CuCl2 =>
ZnCl2 + CuSO4 = Zn(SO4) + CuCl2
PH3 + KMnO4 + HSO4 = KHSO4 + MnSO4 + HPO4 + H2O =>
7 PH3 + 10 KMnO4 + 20 HSO4 = 10 KHSO4 + 10 MnSO4 + 7 HPO4 + 12 H2O
KMnO4 = K{+} + MnO4{-} =>
KMnO4 = K{+} + MnO4{-}
Zn(s) + Pb{2+}(aq) = Zn{2+}(aq) + Pb(aq) =>
Zn(s) + Pb{2+}(aq) = Zn{2+}(aq) + Pb(aq)
H2SO4 + HKO = K2SO4 + H2O =>
H2SO4 + 2 HKO = K2SO4 + 2 H2O
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
Cu + PbCl2 = CuCl + Pb =>
2 Cu + PbCl2 = 2 CuCl + Pb
K2SO3 + H2O + KClO3 = SO4 + Cl2 + KOH =>
5 K2SO3 + 7 H2O + 4 KClO3 = 5 SO4 + 2 Cl2 + 14 KOH
SO2 + NO3 = SO3 + NO2 =>
SO2 + NO3 = SO3 + NO2
HgS + O = HgSO2 =>
HgS + 2 O = HgSO2
Fe + Pb3(PO4)4 = Fe3(PO4)2 + Pb =>
6 Fe + Pb3(PO4)4 = 2 Fe3(PO4)2 + 3 Pb
Zn(s) + Mg(SO4)(aq) = Mg(s) + ZnSO4(aq) =>
Zn(s) + Mg(SO4)(aq) = Mg(s) + ZnSO4(aq)
C7H6O3 + C4H6O3 = C9H8O4 =>
11 C7H6O3 + C4H6O3 = 9 C9H8O4
SO2 + NO3 = SO3 + NO2 =>
SO2 + NO3 = SO3 + NO2
AgNO3 + Mg(NO3)2 = Ag(NO3)2 + MgNO3 =>
AgNO3 + Mg(NO3)2 = Ag(NO3)2 + MgNO3
Cr(OH)3 + HNO3 = Cr(NO3)3 + H2O =>
Cr(OH)3 + 3 HNO3 = Cr(NO3)3 + 3 H2O
NaOH + CaNO3 = CaO + H2 + NaNO3 =>
2 NaOH + 2 CaNO3 = 2 CaO + H2 + 2 NaNO3
Cu + HgCl2 = HgCu + Cl2 =>
Cu + HgCl2 = HgCu + Cl2
BaBr2 + Na3PO4 = Ba3(PO4)2 + NaBr =>
3 BaBr2 + 2 Na3PO4 = Ba3(PO4)2 + 6 NaBr
H2O + Tl2O3 = TlOH + OH =>
3 H2O + Tl2O3 = 2 TlOH + 4 OH
MgCl2 + K2O = KCl + MgO =>
MgCl2 + K2O = 2 KCl + MgO
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