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2 HCOOH + Ca(OH)2 = 2 HCOO + Ca + 2 H2O
Ca(NO3)2 + NaHSO4 = HNO3 + CaSO4NaNO3 =>
Ca(NO3)2 + NaHSO4 = HNO3 + CaSO4NaNO3
CuFeS2 + O2 = Cu2S + FeO + SO2 =>
2 CuFeS2 + 4 O2 = Cu2S + 2 FeO + 3 SO2
Mg(ClO2)2 = MgCl2 + O2 =>
Mg(ClO2)2 = MgCl2 + 2 O2
H{+} + Cr2O7{2-} + S{2-} = Cr{3+} + H2O + S =>
14 H{+} + Cr2O7{2-} + 3 S{2-} = 2 Cr{3+} + 7 H2O + 3 S
FeS2 + BaOH = BaS + Fe(OH)2 =>
FeS2 + 2 BaOH = 2 BaS + Fe(OH)2
Fe2O3 + HI = FeI2 + I2 + H2O =>
Fe2O3 + 6 HI = 2 FeI2 + I2 + 3 H2O
K2Cr2O7 + NaNO2 + H2SO4 = NaNO3 + Cr2(SO4)3 + K2SO4 + H2O =>
K2Cr2O7 + 3 NaNO2 + 4 H2SO4 = 3 NaNO3 + Cr2(SO4)3 + K2SO4 + 4 H2O
KBr2 + KI = I2 + KBr =>
2 KBr2 + 2 KI = I2 + 4 KBr
CuO + N2 = Cu(NO3)2 + Cu =>
6 CuO + N2 = Cu(NO3)2 + 5 Cu
NaOH*Ca(OH)2 + CH3COONa = Na2CO3 + CaCO3 + CH4 =>
NaOH*Ca(OH)2 + 3 CH3COONa = 2 Na2CO3 + CaCO3 + 3 CH4
C3H6O + HCl = C3H6Cl + OH =>
C3H6O + HCl = C3H6Cl + OH
(NH4)2SO4(aq) + CaCl2(aq) = (NH4)2Cl2 + CaSO4 =>
(NH4)2SO4(aq) + CaCl2(aq) = (NH4)2Cl2 + CaSO4
Cl2O + NO + H2O = HCl + HNO3 =>
3 Cl2O + 4 NO + 5 H2O = 6 HCl + 4 HNO3
C5H8 + O2 = CO2 + H2O =>
C5H8 + 7 O2 = 5 CO2 + 4 H2O
K2Cr2O7 + HCl = KCl + CrCl3 + H2O + Cl2 =>
K2Cr2O7 + 14 HCl = 2 KCl + 2 CrCl3 + 7 H2O + 3 Cl2
Zn + NH4OH = Zn(NH3)4 + H2O =>
Zn + 4 NH4OH = Zn(NH3)4 + 4 H2O
HIO3 = HI + O2 =>
2 HIO3 = 2 HI + 3 O2
LiBH4 = LiH + B + H2 =>
2 LiBH4 = 2 LiH + 2 B + 3 H2
MnOHBr + HBr = MnBr2 + H2O =>
MnOHBr + HBr = MnBr2 + H2O
Fe2O3 + HI = FeI2 + I2 + H2O =>
Fe2O3 + 6 HI = 2 FeI2 + I2 + 3 H2O
F2 + NaOH = NaF + FO2 + H2O =>
5 F2 + 8 NaOH = 8 NaF + 2 FO2 + 4 H2O
LiOH + KNO3 = OHK + LiNO3 =>
LiOH + KNO3 = OHK + LiNO3
MnO4{-} + H2O2 = OH{-} + MnO2 + O2 =>
2 MnO4{-} + H2O2 = 2 OH{-} + 2 MnO2 + 2 O2
N2Mg3 + H2O = MgO + NH3 =>
N2Mg3 + 3 H2O = 3 MgO + 2 NH3
HPO2 + H2O = P2O7{4-} + PH3 + H{+} =>
8 HPO2 + 5 H2O = 3 P2O7{4-} + 2 PH3 + 12 H{+}
Zn + NH4OH = Zn(OH)2 + NH4 =>
Zn + 2 NH4OH = Zn(OH)2 + 2 NH4
H{3}(PO{4}) = H{4}(PO{7}) + H{2}O =>
2 H{3}(PO{4}) = H{4}(PO{7}) + H{2}O
ZnO + Cu = Zn + CuO =>
ZnO + Cu = Zn + CuO
CaSO3 + HBr = H2SO3 + CaBr2 =>
CaSO3 + 2 HBr = H2SO3 + CaBr2
B + O2 = B2O3 =>
4 B + 3 O2 = 2 B2O3
(NH4)2CO3 + H2O = H2CO3 + NH4OH =>
(NH4)2CO3 + 2 H2O = H2CO3 + 2 NH4OH
K3AsO4 + H2S = As2S5 + KOH + H2O =>
2 K3AsO4 + 5 H2S = As2S5 + 6 KOH + 2 H2O
Fe(OH)3 = Fe2O3 + H2O =>
2 Fe(OH)3 = Fe2O3 + 3 H2O
C15H22O5 + O2 = CO + H2O =>
2 C15H22O5 + 21 O2 = 30 CO + 22 H2O
Cu + CHI3 = CuI2 + CHI =>
Cu + CHI3 = CuI2 + CHI
CuSO4 + H2S = CuS + H2SO4 =>
CuSO4 + H2S = CuS + H2SO4
MnOHBr + HBr = MnBr2 + H2O =>
MnOHBr + HBr = MnBr2 + H2O
Al + HNO3 = Al2(NO3)3 + H2O + NO =>
2 Al + 4 HNO3 = Al2(NO3)3 + 2 H2O + NO
CH2CHCl + KMnO4 + H2O = CH2CHCl(OH)2 + KOH + MnO2 =>
3 CH2CHCl + 2 KMnO4 + 4 H2O = 3 CH2CHCl(OH)2 + 2 KOH + 2 MnO2
LiOH + KNO3 = OHK + LiNO3 =>
LiOH + KNO3 = OHK + LiNO3
Ca3(PO4)2 + SiO2(s) + C = CaSiO3 + CO + P4 =>
2 Ca3(PO4)2 + 6 SiO2(s) + 10 C = 6 CaSiO3 + 10 CO + P4
MnO2 + Pb3O4 = MnO4 + Pb =>
2 MnO2 + Pb3O4 = 2 MnO4 + 3 Pb
CuCl2 + N2S = NCl + CuS =>
CuCl2 + N2S = 2 NCl + CuS
BeO + H2S = H2O + BeS =>
BeO + H2S = H2O + BeS
KCO4 = KC + O2 =>
KCO4 = KC + 2 O2
H3AsO3 + Sr(OH)2 = Sr3(AsO3)2 + H2O =>
2 H3AsO3 + 3 Sr(OH)2 = Sr3(AsO3)2 + 6 H2O
Mn(NO3)2 + K4[Fe(CN)6] = Mn2[Fe(CN)6] + KNO3 =>
2 Mn(NO3)2 + K4[Fe(CN)6] = Mn2[Fe(CN)6] + 4 KNO3
OH{-}(aq) + ClO3{-}(aq) + Fe(OH)3(s) = FeO4{-2}(aq) + Cl{-}(aq) + H2O(l) =>
4 OH{-}(aq) + ClO3{-}(aq) + 2 Fe(OH)3(s) = 2 FeO4{-2}(aq) + Cl{-}(aq) + 5 H2O(l)
CD = C + D =>
CD = C + D
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