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21 H{+} + Cr2O7 + 21 Sn4{+} = 7 H3O + 42 Sn2{+} + 2 Cr
K2CO3 + Cl(NO3) = KNO3 + Cl2(CO3) =>
K2CO3 + 2 Cl(NO3) = 2 KNO3 + Cl2(CO3)
MgO + NaBr = MgBr2 + Na2O =>
MgO + 2 NaBr = MgBr2 + Na2O
CaCN2(s) + H2O(g) = CaCO3(s) + NH3(g) =>
CaCN2(s) + 3 H2O(g) = CaCO3(s) + 2 NH3(g)
KMnO4 + C2H5CHO + H2SO4 = C2H5COOH + H2O + K2SO4 + MnSO4 =>
2 KMnO4 + 5 C2H5CHO + 3 H2SO4 = 5 C2H5COOH + 3 H2O + K2SO4 + 2 MnSO4
HOOCCOOH = OOCCOO + H =>
HOOCCOOH = OOCCOO + 2 H
H2CO3 + Mg(OH)2 = H2(OH)2 + Mg2(CO3)2 =>
2 H2CO3 + 2 Mg(OH)2 = 2 H2(OH)2 + Mg2(CO3)2
C3H8O + C7H6O2 = C10H12O2 + H2O =>
C3H8O + C7H6O2 = C10H12O2 + H2O
Be2O4Si = Be + O + Si =>
Be2O4Si = 2 Be + 4 O + Si
Ca3(PO4)2 = Ca + PO4 =>
Ca3(PO4)2 = 3 Ca + 2 PO4
Mg + HNO3(concentrated) = Mg(NO3)2 + N2 + H2O =>
5 Mg + 12 HNO3(concentrated) = 5 Mg(NO3)2 + N2 + 6 H2O
Te + F2 = TeF =>
2 Te + F2 = 2 TeF
H2O + KH = H2 + KOH =>
H2O + KH = H2 + KOH
Au(s) + HCl(ac) = AuCl3 + H2(g) =>
2 Au(s) + 6 HCl(ac) = 2 AuCl3 + 3 H2(g)
Br2 + S2O3{2–} + H2O = Br1{-} + SO4{2–} + H{+} =>
6 Br2 + S2O3{2–} + 5 H2O = 12 Br1{-} + 2 SO4{2–} + 10 H{+}
Ba(OH)2 + NaOH = BaOH + Na(OH)2 =>
Ba(OH)2 + NaOH = BaOH + Na(OH)2
P4 + H2O = PH3 + H3PO2 =>
P4 + 6 H2O = PH3 + 3 H3PO2
C25H22P + C15H10 = C22H16 + (C6H5)3P =>
20 C25H22P + 42 C15H10 = 35 C22H16 + 20(C6H5)3P
Cu + Fe2O3 = CuO3 + Fe =>
Cu + Fe2O3 = CuO3 + 2 Fe
C2H3O2 + NaOH = H2O + CO2 + Na =>
C2H3O2 + 7 NaOH = 5 H2O + 2 CO2 + 7 Na
Z2S + O = Z2O + SO2 =>
Z2S + 3 O = Z2O + SO2
Fe(NO3)3 + K4Fe(CN)6 = Fe4[Fe(CN)6]3 + KNO3 =>
4 Fe(NO3)3 + 3 K4Fe(CN)6 = Fe4[Fe(CN)6]3 + 12 KNO3
C57H110O6 + O2 = CO2 + H2O =>
2 C57H110O6 + 163 O2 = 114 CO2 + 110 H2O
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
Na2CO3(s) + H2SO4(ac) = Na2SO4(ac) + CO2(g) + H2O(l) =>
Na2CO3(s) + H2SO4(ac) = Na2SO4(ac) + CO2(g) + H2O(l)
C5H12 + HBr2 = C5H11 + HBr =>
C5H12 + HBr2 = C5H11 + 2 HBr
CsOH + HCl = CsCl + H2O =>
CsOH + HCl = CsCl + H2O
HClO + OH = ClO + H2O =>
HClO + OH = ClO + H2O
H{+} + Cr2O7 + Sn4{+} = H2O + Sn2{+} + Cr =>
14 H{+} + Cr2O7 + 14 Sn4{+} = 7 H2O + 28 Sn2{+} + 2 Cr
K2Cr2O7 + Na2SO3 + H2O = Cr(OH)3 + KOH + Na2SO4 =>
K2Cr2O7 + 3 Na2SO3 + 4 H2O = 2 Cr(OH)3 + 2 KOH + 3 Na2SO4
Ag(s) + HCl(aq) = AgCl + H =>
Ag(s) + HCl(aq) = AgCl + H
K2Cr2O7 + Na2SO3 + H2O = Cr(OH)3 + KOH + Na2SO4 =>
K2Cr2O7 + 3 Na2SO3 + 4 H2O = 2 Cr(OH)3 + 2 KOH + 3 Na2SO4
C + SO2 = CS2 + CO =>
5 C + 2 SO2 = CS2 + 4 CO
Fe(NO3)2 + KI = Fe(I)2 + KNO3 =>
Fe(NO3)2 + 2 KI = Fe(I)2 + 2 KNO3
Mg(s) + H2O(l) = MgO + H2 =>
Mg(s) + H2O(l) = MgO + H2
FeCl2 = Fe + Cl2 =>
FeCl2 = Fe + Cl2
HCl + NaC6H5CO2 = NaCl + C6H5COOH =>
HCl + NaC6H5CO2 = NaCl + C6H5COOH
FeO + Mn = Fe + MnO =>
FeO + Mn = Fe + MnO
H + ClX2 = HCl3 + HX =>
7 H + 3 ClX2 = HCl3 + 6 HX
Mn + PO4 = Mn3(PO4)2 =>
3 Mn + 2 PO4 = Mn3(PO4)2
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
Zn + CuCl2 = Cu + ZnCl =>
2 Zn + CuCl2 = Cu + 2 ZnCl
CrCl6 = Cr + Cl =>
CrCl6 = Cr + 6 Cl
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
(COO)2(NH4)2 + KMnO4 + H2SO4 = CO2 + NH3 + K2SO4 + MnSO4 + H2O =>
5(COO)2(NH4)2 + 2 KMnO4 + 3 H2SO4 = 10 CO2 + 10 NH3 + K2SO4 + 2 MnSO4 + 8 H2O
C3H6 + O2 = CO2 + H2O =>
2 C3H6 + 9 O2 = 6 CO2 + 6 H2O
HONH2HCl + Na2CO3 = NaCl + H2O + CO2 + HONH2 =>
2 HONH2HCl + Na2CO3 = 2 NaCl + H2O + CO2 + 2 HONH2
SrSO4 = Sr + SO4 =>
SrSO4 = Sr + SO4
Zn(NO3)2(aq) + Na3PO4(s) = NaNO3(aq) + Zn3(PO4)2(s) =>
3 Zn(NO3)2(aq) + 2 Na3PO4(s) = 6 NaNO3(aq) + Zn3(PO4)2(s)
N2 + O2 = N2O3 =>
2 N2 + 3 O2 = 2 N2O3
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