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4 NH4HS + K2Cr2O4 = K2Cr2S4 + 4 NH4OH
FeS + O2 = Fe2O3 + SO2 =>
4 FeS + 7 O2 = 2 Fe2O3 + 4 SO2
XeF2 + H2O = Xe + XeO2 + HF =>
2 XeF2 + 2 H2O = Xe + XeO2 + 4 HF
Fe(OH) = Fe + (OH)2 =>
2 Fe(OH) = 2 Fe + (OH)2
AlCl3(aq) + CaBr2(aq) = AlBr3(s) + CaCl2(aq) =>
2 AlCl3(aq) + 3 CaBr2(aq) = 2 AlBr3(s) + 3 CaCl2(aq)
Ni + CH3COO = Ni(CH3COO)2 =>
Ni + 2 CH3COO = Ni(CH3COO)2
Ca{2+} + NaOH{-} = Ca(NaOH)2 =>
Ca{2+} + 2 NaOH{-} = Ca(NaOH)2
Br + P = BrP3 =>
Br + 3 P = BrP3
P + H2O = P(OH)5 + H2 =>
2 P + 10 H2O = 2 P(OH)5 + 5 H2
Sn + Zn(NO3)2 = Sn(NO3) + Zn =>
2 Sn + Zn(NO3)2 = 2 Sn(NO3) + Zn
KO2(g) + H2O(g) = KOH(g) + O2(g) =>
4 KO2(g) + 2 H2O(g) = 4 KOH(g) + 3 O2(g)
PbSO4(aq) + PbS(aq) = Pb(s) + SO2(g) =>
PbSO4(aq) + PbS(aq) = 2 Pb(s) + 2 SO2(g)
N + O = NO =>
N + O = NO
KIO3 + KI + H2OH = KOH + I2 =>
4 KIO3 + 14 KI + 6 H2OH = 18 KOH + 9 I2
KOH + C6H12O7 = KC6H11O7 + H2O =>
KOH + C6H12O7 = KC6H11O7 + H2O
MnO4{-} + H{+} + SO3{2-} = Mn{2+} + H2O + SO4{2-} =>
2 MnO4{-} + 6 H{+} + 5 SO3{2-} = 2 Mn{2+} + 3 H2O + 5 SO4{2-}
NaCl(aq) + KNO3(aq) = KCl(s) + NaNO3(aq) =>
NaCl(aq) + KNO3(aq) = KCl(s) + NaNO3(aq)
Ca(OH)2 + H3(PO4) = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3(PO4) = Ca3(PO4)2 + 6 H2O
C2H3O2 + H = H2O + C =>
C2H3O2 + H = 2 H2O + 2 C
Mg(s) + O2(q) = MgO =>
2 Mg(s) + O2(q) = 2 MgO
NiCO3(s) + H2SO4(aq) = NiSO4(aq) + CO2(g) + H2O(l) =>
NiCO3(s) + H2SO4(aq) = NiSO4(aq) + CO2(g) + H2O(l)
H2SO4 + Na2C2O4 + KMnO4 = CO2 + Mn2O3 + K2SO4 + Na2SO4 + H2O =>
5 H2SO4 + 4 Na2C2O4 + 2 KMnO4 = 8 CO2 + Mn2O3 + K2SO4 + 4 Na2SO4 + 5 H2O
CaSO3 + HCl = CaCl + S + H2O + O2 =>
4 CaSO3 + 4 HCl = 4 CaCl + 4 S + 2 H2O + 5 O2
Ba(SO4) + HCl = BaCl2 + H2SO4 =>
Ba(SO4) + 2 HCl = BaCl2 + H2SO4
FeSO4 + H2SO4 + H2O2 = Fe2(SO4)3 + H2O =>
2 FeSO4 + H2SO4 + H2O2 = Fe2(SO4)3 + 2 H2O
NaOH + S = Na2SO4 + Na2S + H2O =>
8 NaOH + 4 S = Na2SO4 + 3 Na2S + 4 H2O
CH4N2O + Co(NO3)2*6H2O = N2 + H2O + CO2 + Co3O4 =>
14 CH4N2O + 9 Co(NO3)2*6H2O = 23 N2 + 82 H2O + 14 CO2 + 3 Co3O4
H2SO4 + KNO2 = H2O + K2SO4 + KNO3 + NO =>
H2SO4 + 3 KNO2 = H2O + K2SO4 + KNO3 + 2 NO
BaCl2(aq) + K2(SO4)(aq) = Ba(SO4)(s) + KCl(aq) =>
BaCl2(aq) + K2(SO4)(aq) = Ba(SO4)(s) + 2 KCl(aq)
Mg + Cu{+} = Mg{+} + Cu =>
Mg + Cu{+} = Mg{+} + Cu
KI + KBrO3 + HCl = KBr + I2 + KCl + H2O =>
6 KI + KBrO3 + 6 HCl = KBr + 3 I2 + 6 KCl + 3 H2O
KMnO4 + H2C2O4 = MnC2O4 + KHCO3 + H2O + CO2 =>
2 KMnO4 + 7 H2C2O4 = 2 MnC2O4 + 2 KHCO3 + 6 H2O + 8 CO2
Kr + H2 = HKr =>
2 Kr + H2 = 2 HKr
CaI2(aq) + Br2(l) = CaBr2(aq) + I2(l) =>
CaI2(aq) + Br2(l) = CaBr2(aq) + I2(l)
SO3 + Zn + HCl = ZnCl2 + H2S + H2O =>
SO3 + 4 Zn + 8 HCl = 4 ZnCl2 + H2S + 3 H2O
KHP + NaOH = H2O + NaKP =>
KHP + NaOH = H2O + NaKP
K2S + NaNo3 = K2No3 + NaS =>
K2S + NaNo3 = K2No3 + NaS
K2Cr2O7 + H2SO4 + NaHSO3 = K2SO4 + Cr2(SO4)3 + Na2SO4 + H2O =>
2 K2Cr2O7 + 5 H2SO4 + 6 NaHSO3 = 2 K2SO4 + 2 Cr2(SO4)3 + 3 Na2SO4 + 8 H2O
CCl3C(OH)2H + NaBH4 + HCl = CCl3C(H)2OH + BH3 + H2O + NaCl =>
CCl3C(OH)2H + NaBH4 + HCl = CCl3C(H)2OH + BH3 + H2O + NaCl
Ag(NO3) + K2CrO4 = Ag + CrO4 + K2(NO3) =>
Ag(NO3) + K2CrO4 = Ag + CrO4 + K2(NO3)
HMnO4 + NaCl + H2SO4 = MnSO4 + Cl + Na2SO4 + H2O =>
2 HMnO4 + 10 NaCl + 7 H2SO4 = 2 MnSO4 + 10 Cl + 5 Na2SO4 + 8 H2O
Pb(NO3)2 + Kl = (NO3)2 + PbKl =>
Pb(NO3)2 + Kl = (NO3)2 + PbKl
Cu + H2SO4 = Cu2SO4 + H2O + SO2 =>
2 Cu + 2 H2SO4 = Cu2SO4 + 2 H2O + SO2
Na3[Cu(S2O3)2] + H2O + Na2S4O6 = Na2S2O3 + H2SO4 + CuS =>
2 Na3[Cu(S2O3)2] + 2 H2O + Na2S4O6 = 4 Na2S2O3 + 2 H2SO4 + 2 CuS
Fe + H3PO4 = FeH2PO4 + H =>
Fe + H3PO4 = FeH2PO4 + H
AgNO2 + NaCI = NaNO2 + AgCI =>
AgNO2 + NaCI = NaNO2 + AgCI
Li + CeCl3 = Ce + LiCl =>
3 Li + CeCl3 = Ce + 3 LiCl
O2 + Ni = Ni2O =>
O2 + 4 Ni = 2 Ni2O
Ba(OH)2(aq) + H2SO4(aq) = BaSO4(aq) + H2(OH)2(aq) =>
Ba(OH)2(aq) + H2SO4(aq) = BaSO4(aq) + H2(OH)2(aq)
CuCl + NH3 = Cu(NH3)2 + Cl =>
CuCl + 2 NH3 = Cu(NH3)2 + Cl
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