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12 Na2SO3 + 3 K2Cr2O7 + 11 H2SO4 = 12 Na2SO4 + 3 Cr2(SO4)3 + 2 K3SO3 + 11 H2O
Al2O3 + Fe = Fe3O2 + Al =>
2 Al2O3 + 9 Fe = 3 Fe3O2 + 4 Al
Cu + Ag(NO3)2 = Cu(NO3) + Ag =>
2 Cu + Ag(NO3)2 = 2 Cu(NO3) + Ag
ZnS + Ca(OH)2 + O2 = ZnO + CaSO4 + H2O =>
ZnS + Ca(OH)2 + 2 O2 = ZnO + CaSO4 + H2O
KClO4 + Br2 + KOH = KCl + KBrO3 + H2O =>
5 KClO4 + 4 Br2 + 8 KOH = 5 KCl + 8 KBrO3 + 4 H2O
Cu + Ag(NO3)2 = Cu(NO3) + Ag =>
2 Cu + Ag(NO3)2 = 2 Cu(NO3) + Ag
Cu + Ag(NO3)2 = CuNO3 + Ag =>
2 Cu + Ag(NO3)2 = 2 CuNO3 + Ag
UO2SO4 + NH3 + H2O = (NH4)2U2O7 + (NH4)2SO4 =>
2 UO2SO4 + 6 NH3 + 3 H2O = (NH4)2U2O7 + 2(NH4)2SO4
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
NaHLi = LiHNa =>
NaHLi = LiHNa
NO3AgCu = CuNO3Ag =>
NO3AgCu = CuNO3Ag
Mg(NO3)2 + C6H8O7 = MgO + N2 + CO2 + H2O =>
9 Mg(NO3)2 + 5 C6H8O7 = 9 MgO + 9 N2 + 30 CO2 + 20 H2O
CuSO4Mg(OH)2 = Cu(OH)2MgSO4 =>
CuSO4Mg(OH)2 = Cu(OH)2MgSO4
CaOHCl = CaClOH =>
CaOHCl = CaClOH
CH3COOH + Ca(OH)2 = CH3COOCaOH + H2O =>
CH3COOH + Ca(OH)2 = CH3COOCaOH + H2O
H2SO4 + Na2CO3 = CO2 + H2O + Na2SO4 =>
H2SO4 + Na2CO3 = CO2 + H2O + Na2SO4
carbondioxide + potassiumhydroxide = potassiumcarbonate + water =>
CO2 + 2 KOH = K2CO3 + H2O
BaOHSO2 = BaHSO3 =>
BaOHSO2 = BaHSO3
CUSO4Mg(OH)2 = CU(OH)2MgSO4 =>
CUSO4Mg(OH)2 = CU(OH)2MgSO4
NaClO3(aq) + SO2(g) + H2SO4 = NaHSO4(aq) + ClO2(g) =>
2 NaClO3(aq) + SO2(g) + H2SO4 = 2 NaHSO4(aq) + 2 ClO2(g)
XO2 + O2 = XO3 =>
2 XO2 + O2 = 2 XO3
KClO4 + Br2 + KOH = KCl + KBrO3 + H2O =>
5 KClO4 + 4 Br2 + 8 KOH = 5 KCl + 8 KBrO3 + 4 H2O
Cd + AgCl = Cd{2+} + Ag + Cl{-} =>
Cd + 2 AgCl = Cd{2+} + 2 Ag + 2 Cl{-}
Br2 + HI = BrI2 + H =>
Br2 + 4 HI = 2 BrI2 + 4 H
K2S + Fe(ClO3)3 = K(ClO3) + Fe2S3 =>
3 K2S + 2 Fe(ClO3)3 = 6 K(ClO3) + Fe2S3
N + O2 = N2O10 =>
2 N + 5 O2 = N2O10
I2 + KNO2 = KI + NO2 =>
I2 + 2 KNO2 = 2 KI + 2 NO2
HCl2 + CaHS = CaCl2 + S + HCl =>
3 HCl2 + CaHS = CaCl2 + S + 4 HCl
HCl + AuNO3 = AuCl + HNO3 =>
HCl + AuNO3 = AuCl + HNO3
SrBr2 + K2S = SrS + KBr =>
SrBr2 + K2S = SrS + 2 KBr
AsF5 + NaOH = Na3AsO4 + H2O + NaF =>
AsF5 + 8 NaOH = Na3AsO4 + 4 H2O + 5 NaF
Ag + K3[Fe(CN)6] = Ag4[Fe(CN)6] + K4[Fe(CN)6] =>
4 Ag + 4 K3[Fe(CN)6] = Ag4[Fe(CN)6] + 3 K4[Fe(CN)6]
NH4HCO3 + HNO3 = NH4NO3 + H2O + CO2 =>
NH4HCO3 + HNO3 = NH4NO3 + H2O + CO2
XeF2 + H2O = O2 + Xe + HF =>
2 XeF2 + 2 H2O = O2 + 2 Xe + 4 HF
(b)PCl3(l) + H2O(l) = H3PO3(aq) + HCl(aq) =>
(b)PCl3(l) + 3 H2O(l) = H3PO3(aq) + 3 HCl(aq)
FeSO4 + NH4OH = Fe(OH)2 + NH4 + SO4 =>
FeSO4 + 2 NH4OH = Fe(OH)2 + 2 NH4 + SO4
C2H10O + Na = C2H8ONa + H2 =>
C2H10O + Na = C2H8ONa + H2
CaCl2 + K3AsO4 = Ca3(AsO4)2 + KCl =>
3 CaCl2 + 2 K3AsO4 = Ca3(AsO4)2 + 6 KCl
SiO2 + BrF3 = SiF4 + Br + O =>
3 SiO2 + 4 BrF3 = 3 SiF4 + 4 Br + 6 O
KBr + O2 + H2SO4 = K2SO4 + Br2 + H2O =>
4 KBr + O2 + 2 H2SO4 = 2 K2SO4 + 2 Br2 + 2 H2O
C3H6 + O2 = CO2 + H2O =>
2 C3H6 + 9 O2 = 6 CO2 + 6 H2O
HNO3K = HKNO3 =>
HNO3K = HKNO3
BiCl3 + Cl + KOH = KBiO3 + KCl + H2O =>
BiCl3 + 2 Cl + 6 KOH = KBiO3 + 5 KCl + 3 H2O
CuO2C = CuCO2 =>
CuO2C = CuCO2
K2Cr2O7 + FeCl2 + HCl = CrCl3 + Fe2(Cr2O7)3 + KCl + H2O =>
10 K2Cr2O7 + 6 FeCl2 + 14 HCl = 2 CrCl3 + 3 Fe2(Cr2O7)3 + 20 KCl + 7 H2O
Ca3(AsO4)2 + Ag2S = Ag3AsO4 + CaS =>
Ca3(AsO4)2 + 3 Ag2S = 2 Ag3AsO4 + 3 CaS
K3[Co(C2O4)3] + KOH = CoO(OH) + K2C2O4 + H2O =>
K3[Co(C2O4)3] + 3 KOH = CoO(OH) + 3 K2C2O4 + H2O
CaOCO2 = CaCO3 =>
CaOCO2 = CaCO3
W + S8 = WS =>
8 W + S8 = 8 WS
F + O2 = F2O3 =>
4 F + 3 O2 = 2 F2O3
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