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2 HNO2 + CaCO3 = H2CO3 + Ca(NO2)2
PbS + H2SO4 = PbSO4 + SO2 + H2O =>
PbS + 4 H2SO4 = PbSO4 + 4 SO2 + 4 H2O
Mg(s) + H2S(g) = MgS(s) + H2(g) =>
Mg(s) + H2S(g) = MgS(s) + H2(g)
K2Cr2O7 + CH3CHOHCH3 + H2SO4 = Cr2(SO4)3 + K2SO4 + CH3COOH + H2O =>
2 K2Cr2O7 + 2 CH3CHOHCH3 + 8 H2SO4 = 2 Cr2(SO4)3 + 2 K2SO4 + 3 CH3COOH + 10 H2O
Ag + K2CrO4 = AgCrO4 + K2 =>
Ag + K2CrO4 = AgCrO4 + K2
Cr + NaOH + H2O = NaCr(OH)4 + H2 =>
2 Cr + 2 NaOH + 6 H2O = 2 NaCr(OH)4 + 3 H2
LiOH + Ba(NO3)2 = Li(NO3) + Ba(OH)2 =>
2 LiOH + Ba(NO3)2 = 2 Li(NO3) + Ba(OH)2
CaCl2(aq) + NaNO3(aq) = Ca(NO3)2 + Na(Cl) =>
CaCl2(aq) + 2 NaNO3(aq) = Ca(NO3)2 + 2 Na(Cl)
SO3{-2} + H2O = SO4{-2} + H2 =>
SO3{-2} + H2O = SO4{-2} + H2
RbH + H2O = RbO + H2 =>
2 RbH + 2 H2O = 2 RbO + 3 H2
MoS2 + O2 = MoO3 + SO =>
2 MoS2 + 5 O2 = 2 MoO3 + 4 SO
Cl + H2O = HCl + O2 =>
4 Cl + 2 H2O = 4 HCl + O2
HAuCl4 + NaBH4 + H2O = Au + B(OH)3 + NaCl + H2 =>
2 HAuCl4 + 8 NaBH4 + 24 H2O = 2 Au + 8 B(OH)3 + 8 NaCl + 29 H2
SiO2 + H2SO4 = SiSO4 + H2O2 =>
SiO2 + H2SO4 = SiSO4 + H2O2
Na2SO3 + K2Cr2O7 + H2O = Cr(OH)3 + KOH + Na2SO4 =>
3 Na2SO3 + K2Cr2O7 + 4 H2O = 2 Cr(OH)3 + 2 KOH + 3 Na2SO4
Ba + H3PO4 = Ba3(PO4)2 + H2 =>
3 Ba + 2 H3PO4 = Ba3(PO4)2 + 3 H2
O2 + Cl2 = Cl2O =>
O2 + 2 Cl2 = 2 Cl2O
NaOH + SIO2 = Na2SIO3 + H2O =>
2 NaOH + SIO2 = Na2SIO3 + H2O
Pb(C2H3O2)2 + Na3PO4 = Pb3(PO4)2 + C2H3NaO2 =>
3 Pb(C2H3O2)2 + 2 Na3PO4 = Pb3(PO4)2 + 6 C2H3NaO2
H3Po4 + BaBr2 = HBr2 + Ba3Po4 =>
H3Po4 + 3 BaBr2 = 3 HBr2 + Ba3Po4
CaCl2 + H2CO3 = CaCO3 + HCl =>
CaCl2 + H2CO3 = CaCO3 + 2 HCl
Fe(No3)2 + KCN = Fe(CN)2 + KNo3 =>
Fe(No3)2 + 2 KCN = Fe(CN)2 + 2 KNo3
FeBr2 + Cl = FeCl2 + Br =>
FeBr2 + 2 Cl = FeCl2 + 2 Br
K2Cr2O7 + ClH = CrCl3 + KCl + Cl2 + H2O =>
K2Cr2O7 + 14 ClH = 2 CrCl3 + 2 KCl + 3 Cl2 + 7 H2O
SnI4 + PPh3 = SnI4(PPh3) =>
SnI4 + PPh3 = SnI4(PPh3)
Mn + Ca(NO3)2 = Mn(NO3)2 + Ca =>
Mn + Ca(NO3)2 = Mn(NO3)2 + Ca
K2CO3 + HCl = KCl + H2O + CO2 =>
K2CO3 + 2 HCl = 2 KCl + H2O + CO2
C4H10O + Na = C4H9ONa + H =>
C4H10O + Na = C4H9ONa + H
H3BO3 + Ca(OH)2 = Ca3(BO3)2 + H2O =>
2 H3BO3 + 3 Ca(OH)2 = Ca3(BO3)2 + 6 H2O
CuSO4*5H2O + NH3 = Cu(NH3)4SO4*H2O + H2O =>
CuSO4*5H2O + 4 NH3 = Cu(NH3)4SO4*H2O + 4 H2O
CH3H8 + O2 = CO2 + H2O =>
4 CH3H8 + 15 O2 = 4 CO2 + 22 H2O
Cr(OH)3 + NH3 = Cr(NH3) + OH =>
Cr(OH)3 + NH3 = Cr(NH3) + 3 OH
Ag + HBr = AgBr + H =>
Ag + HBr = AgBr + H
Fe + CH3COOH = Fe(CH3COO) + H2 =>
2 Fe + 2 CH3COOH = 2 Fe(CH3COO) + H2
Na2ZnO2 + H2SO4 = ZnSO4 + NaOH =>
Na2ZnO2 + H2SO4 = ZnSO4 + 2 NaOH
MnO + KClO3 + KOH = KMnO4 + KCl + H2O =>
6 MnO + 5 KClO3 + 6 KOH = 6 KMnO4 + 5 KCl + 3 H2O
MnI4 + AlPO4 = Mn3(PO4)4 + AlI3 =>
3 MnI4 + 4 AlPO4 = Mn3(PO4)4 + 4 AlI3
NaCl(aq) + Hg2(C2H3O2)2(aq) = Na(C2H3O2)(aq) + HgCl(s) =>
2 NaCl(aq) + Hg2(C2H3O2)2(aq) = 2 Na(C2H3O2)(aq) + 2 HgCl(s)
P(s) + Cl2(g) = PCl5 =>
2 P(s) + 5 Cl2(g) = 2 PCl5
MgCl2 + Cr = Mg + CrCl3 =>
3 MgCl2 + 2 Cr = 3 Mg + 2 CrCl3
Li2S + O2 = Li2SO4 =>
Li2S + 2 O2 = Li2SO4
Hg + SnCl2 = HgCl2 + Sn =>
Hg + SnCl2 = HgCl2 + Sn
Na2B4O7 + H2SO4(aq) + H2O(l) = H3BO3(s) + Na2SO4(aq) =>
Na2B4O7 + H2SO4(aq) + 5 H2O(l) = 4 H3BO3(s) + Na2SO4(aq)
CuO + Al2O3 = CuAlO2 + O2 =>
4 CuO + 2 Al2O3 = 4 CuAlO2 + O2
Ca(OH)Cl + HCl = CaCl2 + H2O =>
Ca(OH)Cl + HCl = CaCl2 + H2O
Mg2 + F = MgF2 =>
Mg2 + 4 F = 2 MgF2
FeCO3 + H2S = FeS + H2CO3 =>
FeCO3 + H2S = FeS + H2CO3
MnNO3*H2O + KOH = KMnO4 + H2O + NH =>
MnNO3*H2O + KOH = KMnO4 + H2O + NH
Mg(NO3)2(aq) + NaOH(aq) = Mg(OH)2 + NaNO3 =>
Mg(NO3)2(aq) + 2 NaOH(aq) = Mg(OH)2 + 2 NaNO3
Ba + NaCl = Ba(NaCl) =>
Ba + NaCl = Ba(NaCl)
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