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2 Rb + 2 HI = 2 RbI + H2
PbCl2 = Pb + Cl =>
PbCl2 = Pb + 2 Cl
Pb(NO3)2(aq) + K2CrO4(aq) = PbCrO4(s) + KNO3(aq) =>
Pb(NO3)2(aq) + K2CrO4(aq) = PbCrO4(s) + 2 KNO3(aq)
KOH + Ca(OH)2 = K(OH)2 + CaOH =>
KOH + Ca(OH)2 = K(OH)2 + CaOH
CaO + SO3 = CaSO4 =>
CaO + SO3 = CaSO4
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
K2CO3 + BaCl2 = KCl + BaCO3 =>
K2CO3 + BaCl2 = 2 KCl + BaCO3
C3H8O + O2 = CO2 + H2O =>
2 C3H8O + 9 O2 = 6 CO2 + 8 H2O
S + O2 = SO2 =>
S + O2 = SO2
CaO(s) + SO2(g) = CaS(s) + O2(g) =>
2 CaO(s) + 2 SO2(g) = 2 CaS(s) + 3 O2(g)
Fe2(SO4)3 + KOH = K2SO4 + Fe(OH)3 =>
Fe2(SO4)3 + 6 KOH = 3 K2SO4 + 2 Fe(OH)3
NO3 + H = N2 + H2O =>
2 NO3 + 12 H = N2 + 6 H2O
H2SO4 + NaHCO3 = Na2SO4 + CO2 + H2O =>
H2SO4 + 2 NaHCO3 = Na2SO4 + 2 CO2 + 2 H2O
KCl = K + Cl =>
KCl = K + Cl
H2SO4 + NaHCO3 = Na2SO4 + CO2 + H2O =>
H2SO4 + 2 NaHCO3 = Na2SO4 + 2 CO2 + 2 H2O
CaH2 + H2O = Ca(OH)2 + H2 =>
CaH2 + 2 H2O = Ca(OH)2 + 2 H2
AlBr3 + K2SO4 = KBr + Al2(SO4)3 =>
2 AlBr3 + 3 K2SO4 = 6 KBr + Al2(SO4)3
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
KI + HgNO3 = KNO3 + HgI =>
KI + HgNO3 = KNO3 + HgI
Fe + S = FeS =>
Fe + S = FeS
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
Zn + FeCl2 = ZnCl2 + Fe =>
Zn + FeCl2 = ZnCl2 + Fe
H3PO4 + Mg(OH)2 = Mg3(PO4)2 + H2O =>
2 H3PO4 + 3 Mg(OH)2 = Mg3(PO4)2 + 6 H2O
NH3 + H2O = NH4OH =>
NH3 + H2O = NH4OH
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
K + Ca(OH)2 = K(OH)2 + CaOH =>
K + 2 Ca(OH)2 = K(OH)2 + 2 CaOH
NCl3 + H2O = NH3 + HOCl =>
NCl3 + 3 H2O = NH3 + 3 HOCl
C + O2 = CO2 =>
C + O2 = CO2
Na + O2 = Na2O2 =>
2 Na + O2 = Na2O2
Ca + HCl = CaCl2 + H2 =>
Ca + 2 HCl = CaCl2 + H2
C4H10(g) + O2(g) = CO2(g) + H2O(l) =>
2 C4H10(g) + 13 O2(g) = 8 CO2(g) + 10 H2O(l)
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Pb + S = PbS =>
Pb + S = PbS
C20H12 + NO3 = N2 + H2O + CO2 =>
3 C20H12 + 46 NO3 = 23 N2 + 18 H2O + 60 CO2
Ca + HCl = CaCl2 + H =>
Ca + 2 HCl = CaCl2 + 2 H
NaCl + H2SO4 = Na2SO4 + HCl =>
2 NaCl + H2SO4 = Na2SO4 + 2 HCl
Hg + O2 = HgO =>
2 Hg + O2 = 2 HgO
Ca(HCO3)2 + HNO3 = Ca(NO3)2 + H2O + CO2 =>
Ca(HCO3)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O + 2 CO2
MgNH4PO4 = Mg2P2O7 + NH3 + H2O =>
2 MgNH4PO4 = Mg2P2O7 + 2 NH3 + H2O
As2S3 + H2SO4 = As2(SO4)3 + H2S =>
As2S3 + 3 H2SO4 = As2(SO4)3 + 3 H2S
NH4Cl + Ca(OH)2 = CaCl2 + NH3 + H2O =>
2 NH4Cl + Ca(OH)2 = CaCl2 + 2 NH3 + 2 H2O
Mg + N2 = Mg3N2 =>
3 Mg + N2 = Mg3N2
K(s) + Br2(l) = KBr(s) =>
2 K(s) + Br2(l) = 2 KBr(s)
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
H2SO4 + NaHCO3 = Na2SO4 + CO2 + H2O =>
H2SO4 + 2 NaHCO3 = Na2SO4 + 2 CO2 + 2 H2O
ZnS + O2 = ZnO + SO2 =>
2 ZnS + 3 O2 = 2 ZnO + 2 SO2
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
SO3 + NaOH = Na2SO4 + H2O =>
SO3 + 2 NaOH = Na2SO4 + H2O
Ca(HCO3)2 + HCl = CaCl2 + CO2 + H2O =>
Ca(HCO3)2 + 2 HCl = CaCl2 + 2 CO2 + 2 H2O
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