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2 CH2O + NaOH = CH3OH + HCOONa
BaO + MgO = BaMg + O2 =>
BaO + MgO = BaMg + O2
CuS(s) + O2(g) = SO3(g) + CuO(s) =>
CuS(s) + 2 O2(g) = SO3(g) + CuO(s)
Na2MoO4 + NaHSO4 + Na2S2O3 = H2O + MoS2 + Na2SO4 =>
4 Na2MoO4 + 6 NaHSO4 + 9 Na2S2O3 = 3 H2O + 4 MoS2 + 16 Na2SO4
HCl + O2 = H2O + Cl2 =>
4 HCl + O2 = 2 H2O + 2 Cl2
Hg(l) + F2(g) = HgF2(s) =>
Hg(l) + F2(g) = HgF2(s)
Li + CeCl3 = Ce + LiCl =>
3 Li + CeCl3 = Ce + 3 LiCl
Li(s) + H2O(s) = LiOH(aq) + H2(g) =>
2 Li(s) + 2 H2O(s) = 2 LiOH(aq) + H2(g)
CuS(s) + O2(g) = CuO(s) + SO2 =>
2 CuS(s) + 3 O2(g) = 2 CuO(s) + 2 SO2
Mg2(OH)2 = MgOH =>
Mg2(OH)2 = 2 MgOH
K2SO4(aq) + Fe(NO3)2(aq) = KNO3(aq) + FeSO4(s) =>
K2SO4(aq) + Fe(NO3)2(aq) = 2 KNO3(aq) + FeSO4(s)
H3PO4 + H = H3PO2 + H2O =>
H3PO4 + 4 H = H3PO2 + 2 H2O
CaSi2 + Cl2 = Si2Cl6 + CaCl2 =>
CaSi2 + 4 Cl2 = Si2Cl6 + CaCl2
Kr + O2 = KrO =>
2 Kr + O2 = 2 KrO
CuS(s) + O2(g) = CuO(s)SO2(g) =>
2 CuS(s) + 3 O2(g) = 2 CuO(s)SO2(g)
Fe(NO3)2(aq) + K2SO4(aq) = FeSO4 + KNO3 =>
Fe(NO3)2(aq) + K2SO4(aq) = FeSO4 + 2 KNO3
NaCN + Cl2 + NaOH = NaCNO + NaCl + H2O =>
NaCN + Cl2 + 2 NaOH = NaCNO + 2 NaCl + H2O
Ti + HgO = TiO2 + Hg =>
Ti + 2 HgO = TiO2 + 2 Hg
H(g) + NF3(g) = N(g) + HF =>
3 H(g) + NF3(g) = N(g) + 3 HF
CuS(s) + O2(g) = Cu2O(s) + SO2(g) =>
4 CuS(s) + 5 O2(g) = 2 Cu2O(s) + 4 SO2(g)
Ca(OH)2 + H3Br = CaBr + H2O + H2 =>
2 Ca(OH)2 + 2 H3Br = 2 CaBr + 4 H2O + H2
CuS(s) + O2(g) = Cu + SO2 =>
CuS(s) + O2(g) = Cu + SO2
Mg2(OH)2 = MgOH =>
Mg2(OH)2 = 2 MgOH
Ca + HC2H3O2 = Ca(C2H3O2)2 + H2 =>
Ca + 2 HC2H3O2 = Ca(C2H3O2)2 + H2
Kr + O2 = KrO2 =>
Kr + O2 = KrO2
Hg(OH)2 + H3PO4 = H2O + Hg3(PO4)2 =>
3 Hg(OH)2 + 2 H3PO4 = 6 H2O + Hg3(PO4)2
Cr(OH)3 + O2 = CrO3 + H2O =>
4 Cr(OH)3 + 3 O2 = 4 CrO3 + 6 H2O
Fe(NO3)3(ac) + NH3(ac) + H2O(l) = Fe(OH)3(s) + (NH4)NO3(ac) =>
Fe(NO3)3(ac) + 3 NH3(ac) + 3 H2O(l) = Fe(OH)3(s) + 3(NH4)NO3(ac)
C6H5CH2COOH + CH3COCH3Cl2 = C6H5CH2COOCH3 + CH2Cl2 + H2O =>
3 C6H5CH2COOH + 6 CH3COCH3Cl2 = 4 C6H5CH2COOCH3 + 6 CH2Cl2 + 4 H2O
CuS(s) + O2(g) = Cu(s) + SO2(g) =>
CuS(s) + O2(g) = Cu(s) + SO2(g)
H3PO4 + AgF = Ag3PO4 + FH =>
H3PO4 + 3 AgF = Ag3PO4 + 3 FH
CH2O + NaOH = CH3OH + HCOOH + Na =>
3 CH2O + 2 NaOH = CH3OH + 2 HCOOH + 2 Na
Mg2(OH)2 = MgOH =>
Mg2(OH)2 = 2 MgOH
Hg(OH)2 + H3PO4 = H2O + Hg3(PO4)2 =>
3 Hg(OH)2 + 2 H3PO4 = 6 H2O + Hg3(PO4)2
LiNO3 + Mg = Li + MgNO3 =>
LiNO3 + Mg = Li + MgNO3
NH2CONH2 + HNO2 = CO2 + N2 + H2O =>
NH2CONH2 + 2 HNO2 = CO2 + 2 N2 + 3 H2O
Pb + Fe3O4 = PbO + FeO =>
Pb + Fe3O4 = PbO + 3 FeO
NaBr + KMnO4 + H2O = Br2 + MnO2 + NaOH + KOH =>
6 NaBr + 2 KMnO4 + 4 H2O = 3 Br2 + 2 MnO2 + 6 NaOH + 2 KOH
H2CO3 + Fe2O3 = Fe(OH)3 + CO2 =>
3 H2CO3 + Fe2O3 = 2 Fe(OH)3 + 3 CO2
C9H9NO8Na4 + C2H3O2Cl = C9H13NO8 + C2H2O2ClNa =>
C9H9NO8Na4 + 4 C2H3O2Cl = C9H13NO8 + 4 C2H2O2ClNa
Cr(OH)3 + O2 = CrO4{2-} + H2O + H{+} =>
4 Cr(OH)3 + 3 O2 = 4 CrO4{2-} + 2 H2O + 8 H{+}
Na4C = Na + C =>
Na4C = 4 Na + C
HCIO3 = CIO2 + HCIO4 + H2O =>
3 HCIO3 = 2 CIO2 + HCIO4 + H2O
SrSO4 + AgNO3 = Sr(NO3)2 + Ag2SO4 =>
SrSO4 + 2 AgNO3 = Sr(NO3)2 + Ag2SO4
MnO2(s) + HCl(aq) = MnCl2(aq) + H2O(g) + Cl2 =>
MnO2(s) + 4 HCl(aq) = MnCl2(aq) + 2 H2O(g) + Cl2
C + Al = Al3C3 =>
3 C + 3 Al = Al3C3
C6H5CH2COOH + CH3COCH3Cl2 = C6H5CH2COOCH3 + CH2Cl2 + H2O =>
3 C6H5CH2COOH + 6 CH3COCH3Cl2 = 4 C6H5CH2COOCH3 + 6 CH2Cl2 + 4 H2O
KNO3 + FeS2 = Fe2O3 + SO3 + K2SO4 + N2 =>
6 KNO3 + 2 FeS2 = Fe2O3 + SO3 + 3 K2SO4 + 3 N2
Fe(NO3)3(ac) + NH3(ac) + H2O(l) = Fe(OH)3(s) + (NH4)NO3(ac) =>
Fe(NO3)3(ac) + 3 NH3(ac) + 3 H2O(l) = Fe(OH)3(s) + 3(NH4)NO3(ac)
Cr(OH)3 + O2 = CrO2 + H2O =>
4 Cr(OH)3 + O2 = 4 CrO2 + 6 H2O
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