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2 HNO3 + CaCO3 = CO2 + Ca(NO3)2 + H2O
CoCl2(aq) + Na2S(aq) = CoS(aq) + NaCl(s) =>
CoCl2(aq) + Na2S(aq) = CoS(aq) + 2 NaCl(s)
Cr2O7{-2} + H{+} + {-} = Cr{+3} + H2O =>
Cr2O7{-2} + 14 H{+} + 6e = 2 Cr{+3} + 7 H2O
K2Cr2O7 + H2SO4 + Na2S = K2SO4 + Cr2(SO4)3 + Na2SO4 + H2O =>
4 K2Cr2O7 + 16 H2SO4 + 3 Na2S = 4 K2SO4 + 4 Cr2(SO4)3 + 3 Na2SO4 + 16 H2O
K3PO4 + NiCl2 = K3Cl2 + NiPO4 =>
K3PO4 + NiCl2 = K3Cl2 + NiPO4
HCOOH + Pb(OH)2 = Pb(HCOO)2 + H2O =>
2 HCOOH + Pb(OH)2 = Pb(HCOO)2 + 2 H2O
HI + K2CO3 = K2I + HCO3 =>
HI + K2CO3 = K2I + HCO3
CH3CH(OH)CH3 + KMnO4 + HCl = CH3COCH3 + KCl + MnCl2 + H2O =>
5 CH3CH(OH)CH3 + 2 KMnO4 + 6 HCl = 5 CH3COCH3 + 2 KCl + 2 MnCl2 + 8 H2O
CaCl2 + H2CO3 = CaCO3 + H2Cl2 =>
CaCl2 + H2CO3 = CaCO3 + H2Cl2
Fe + Co(NO3)2 = FeNO3 + Co =>
2 Fe + Co(NO3)2 = 2 FeNO3 + Co
Sb2O5 = Sb2 + O2 =>
2 Sb2O5 = 2 Sb2 + 5 O2
NaNo3 + H2SO4 = HNo3 + Na2SO4 =>
2 NaNo3 + H2SO4 = 2 HNo3 + Na2SO4
PbO2 + HNO3 + FeO = Pb(NO3)2 + Fe(NO3)3 + H2O =>
PbO2 + 8 HNO3 + 2 FeO = Pb(NO3)2 + 2 Fe(NO3)3 + 4 H2O
MnO2 + KCIO3 + K2CO3 = K2MnO4 + KCI + CO2 =>
3 MnO2 + KCIO3 + 3 K2CO3 = 3 K2MnO4 + KCI + 3 CO2
C4H4Cl2 + O2 = CO + H2O + Cl2 =>
C4H4Cl2 + 3 O2 = 4 CO + 2 H2O + Cl2
H(s) + O(s) = H(s)O(s) =>
H(s) + O(s) = H(s)O(s)
Al(NO3)3 + (NaOH) = Al(OH)3 + NaNO3 =>
Al(NO3)3 + 3(NaOH) = Al(OH)3 + 3 NaNO3
Hg(O)2 = Hg2O2 + O =>
2 Hg(O)2 = Hg2O2 + 2 O
SrCl2(aq) + Na2CO3(aq) = SrCO3(l) + Na2Cl2(aq) =>
SrCl2(aq) + Na2CO3(aq) = SrCO3(l) + Na2Cl2(aq)
CuCl2 + KI + H2SO4 = HCl + K2SO4 + CuI2 =>
CuCl2 + 2 KI + H2SO4 = 2 HCl + K2SO4 + CuI2
Na2HPO3 + BaCl2 = BaHPO3 + NaCl =>
Na2HPO3 + BaCl2 = BaHPO3 + 2 NaCl
K2CO3 + HCl = CO2 + H2O + KCl =>
K2CO3 + 2 HCl = CO2 + H2O + 2 KCl
NaF + Ag = NaAg + AgF =>
NaF + 2 Ag = NaAg + AgF
H(s) + O(s) = H(s)O(s) =>
H(s) + O(s) = H(s)O(s)
Ni(OH)2 + KCl = NiCl2 + KOH =>
Ni(OH)2 + 2 KCl = NiCl2 + 2 KOH
Al(OH)3 + Na2O = NaOH + Al2O3 =>
2 Al(OH)3 + 3 Na2O = 6 NaOH + Al2O3
C2H5OH + SO4{2-} = CH3COO{-} + HS{-} + H{+} + H2O =>
2 C2H5OH + SO4{2-} = 2 CH3COO{-} + HS{-} + H{+} + 2 H2O
Na2Pb(OH)4 + HNO3 = Pb(NO3)2 + H2O + NaNO3 =>
Na2Pb(OH)4 + 4 HNO3 = Pb(NO3)2 + 4 H2O + 2 NaNO3
K + Au(NO3)3 = K(NO3) + Au =>
3 K + Au(NO3)3 = 3 K(NO3) + Au
NaCN + O2 = Na2O + CO2 + NO2 =>
4 NaCN + 9 O2 = 2 Na2O + 4 CO2 + 4 NO2
P2O5 + Zn + HCl = ZnCl2 + H2O + PH3 =>
P2O5 + 8 Zn + 16 HCl = 8 ZnCl2 + 5 H2O + 2 PH3
H2O2 + H3O{+} + Co{2+} = Co{3+} + H2O =>
H2O2 + 2 H3O{+} + 2 Co{2+} = 2 Co{3+} + 4 H2O
C(s) + HBr(aq) = CBr4(l) + H2(g) =>
C(s) + 4 HBr(aq) = CBr4(l) + 2 H2(g)
KI + AgNO{3} = AgI + KNO{3} =>
KI + AgNO{3} = AgI + KNO{3}
Mg + Cr(OH)5 = Mg(OH)2 + Cr =>
5 Mg + 2 Cr(OH)5 = 5 Mg(OH)2 + 2 Cr
Mn2Te7 = Mn + Te =>
Mn2Te7 = 2 Mn + 7 Te
MnO2 + HCl + Zn = MnCl + ZnCl + H2O =>
MnO2 + 4 HCl + 3 Zn = MnCl + 3 ZnCl + 2 H2O
Cd + HCl = CdCl2 + H2 =>
Cd + 2 HCl = CdCl2 + H2
CaCl2 + NaOH = Na2Cl2 + Ca(OH)2 =>
CaCl2 + 2 NaOH = Na2Cl2 + Ca(OH)2
Me + HNO3 = MeNO3 + NH4NO3 + H2O =>
8 Me + 10 HNO3 = 8 MeNO3 + NH4NO3 + 3 H2O
PbO2 + FeO + HNO3 = Pb(NO3)2 + Fe(NO3)3 + H2O =>
PbO2 + 2 FeO + 8 HNO3 = Pb(NO3)2 + 2 Fe(NO3)3 + 4 H2O
[Ni(NH3)6](NO3)2 + Na2S2O3 + H2SO4 = S + NiSO4 + NaNO3 + NH42(SO4) =>
163[Ni(NH3)6](NO3)2 + 606 Na2S2O3 + 465 H2SO4 = 1422 S + 163 NiSO4 + 1212 NaNO3 + 92 NH42(SO4)
AgNO3 + HCe = AgCe + HNO3 =>
AgNO3 + HCe = AgCe + HNO3
Al2Cl6 + H2O = Al(OH0)3 + HCl =>
Al2Cl6 + 6 H2O = 2 Al(OH0)3 + 6 HCl
C19H4O + O2 = CO2 + H2O =>
2 C19H4O + 39 O2 = 38 CO2 + 4 H2O
CH3COOC2H3 + Br2 = CH3COOC2H3Br2 =>
CH3COOC2H3 + Br2 = CH3COOC2H3Br2
Al2(SO4)3 + BaCl2 = AlCl3 + BaSO4 =>
Al2(SO4)3 + 3 BaCl2 = 2 AlCl3 + 3 BaSO4
H2O2 + H2SO4 + K2CrO4 = CrO5 + H2O + K2SO4 =>
2 H2O2 + H2SO4 + K2CrO4 = CrO5 + 3 H2O + K2SO4
Fe(OH)3 + H2SO4 = Fe2(SO4)3 + H2O =>
2 Fe(OH)3 + 3 H2SO4 = Fe2(SO4)3 + 6 H2O
Ca3(PO4)2(aq) + Na2SO4(aq) = CaSO4(s) + Na3PO4(aq) =>
Ca3(PO4)2(aq) + 3 Na2SO4(aq) = 3 CaSO4(s) + 2 Na3PO4(aq)
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