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2 Fe + 2 HCI = 2 FeCI + H2
P + O2 = P2O5 =>
4 P + 5 O2 = 2 P2O5
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
CaCO3 + H3PO4 = Ca3(PO4)2 + CO2 + H2O =>
3 CaCO3 + 2 H3PO4 = Ca3(PO4)2 + 3 CO2 + 3 H2O
H2SO4 + Cu = CuSO4 + H2 =>
H2SO4 + Cu = CuSO4 + H2
K2Cr2O7 + HCl = KCl + CrCl3 + Cl2 + H2O =>
K2Cr2O7 + 14 HCl = 2 KCl + 2 CrCl3 + 3 Cl2 + 7 H2O
P4 + O = P4O10 =>
P4 + 10 O = P4O10
RB + HCL = RBCL + H2 =>
2 RB + 2 HCL = 2 RBCL + H2
C3H8 + O2 = H2O + CO3 =>
2 C3H8 + 13 O2 = 8 H2O + 6 CO3
K2Cr2O7 + FeSO4 + H2SO4 = Cr2(SO4)3 + K2SO4 + Fe2(SO4)3 + H2O =>
K2Cr2O7 + 6 FeSO4 + 7 H2SO4 = Cr2(SO4)3 + K2SO4 + 3 Fe2(SO4)3 + 7 H2O
C3H8 + O2 = H2O + CO3 =>
2 C3H8 + 13 O2 = 8 H2O + 6 CO3
Cr(NO3)3 + C2H2O4 = Cr2(C2O4)3 + HNO3 =>
2 Cr(NO3)3 + 3 C2H2O4 = Cr2(C2O4)3 + 6 HNO3
NaNO3 + Zn + NaOH = NH3 + Na2ZnO2 + H2O =>
NaNO3 + 4 Zn + 7 NaOH = NH3 + 4 Na2ZnO2 + 2 H2O
H2SO4 + Mg = MgSO4 + H2 =>
H2SO4 + Mg = MgSO4 + H2
H2 + CuO = Cu + H2O =>
H2 + CuO = Cu + H2O
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
H2 + Cl2 = HCl2 =>
H2 + 2 Cl2 = 2 HCl2
H2SO4 + Zn = ZnSO4 + H2 =>
H2SO4 + Zn = ZnSO4 + H2
H3PO4(aq) + NaOH(aq) = Na3PO4(aq) + H2O(l) =>
H3PO4(aq) + 3 NaOH(aq) = Na3PO4(aq) + 3 H2O(l)
HIO3 + H2S = I2 + S + H2O =>
2 HIO3 + 5 H2S = I2 + 5 S + 6 H2O
H2SO4 + Fe = FeSO4 + H2 =>
H2SO4 + Fe = FeSO4 + H2
C2H4 + H2O = C2H5OH =>
C2H4 + H2O = C2H5OH
NaOH + HNO3 = NaNO3 + H2O =>
NaOH + HNO3 = NaNO3 + H2O
Cu2O + Cu2S = Cu + SO2 =>
2 Cu2O + Cu2S = 6 Cu + SO2
MgO + CO2 = MgCO3 =>
MgO + CO2 = MgCO3
CH3CH2CH2OH + K2Cr2O7 + H2SO4 = Cr2(SO4)3 + K2SO4 + CH3CH2CH2CHO + H2O =>
4 CH3CH2CH2OH + K2Cr2O7 + 4 H2SO4 = Cr2(SO4)3 + K2SO4 + 3 CH3CH2CH2CHO + 8 H2O
NaOH + HNO3 = NaNO3 + H2O =>
NaOH + HNO3 = NaNO3 + H2O
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
MgSO4 + NH4OH = MgOH + NH4SO4 =>
MgSO4 + NH4OH = MgOH + NH4SO4
KClO(aq) + HCl(aq) = KCl(aq) + HClO(aq) =>
KClO(aq) + HCl(aq) = KCl(aq) + HClO(aq)
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
KI + HNO3 + H2SO4 = NO2 + I2 + H2O + K2SO4 =>
2 KI + 2 HNO3 + H2SO4 = 2 NO2 + I2 + 2 H2O + K2SO4
AlCl3 + Nh4Oh = Al(Oh)3 + Nh4Cl =>
AlCl3 + 3 Nh4Oh = Al(Oh)3 + 3 Nh4Cl
CuSO4 + Mg = MgSO4 + Cu =>
CuSO4 + Mg = MgSO4 + Cu
Cu + FeCl3 = CuCl2 + FeCl =>
Cu + FeCl3 = CuCl2 + FeCl
CuCl2 + H2O + SO2 = CuCl + HCl + H2SO4 =>
2 CuCl2 + 2 H2O + SO2 = 2 CuCl + 2 HCl + H2SO4
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
MgI2(aq) + NaOH(aq) = Mg(OH)2(aq) + NaI(s) =>
MgI2(aq) + 2 NaOH(aq) = Mg(OH)2(aq) + 2 NaI(s)
(NH4)3PO4 + Pb(NO3)4 = Pb3(PO4)4 + NH4NO3 =>
4(NH4)3PO4 + 3 Pb(NO3)4 = Pb3(PO4)4 + 12 NH4NO3
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
PbO + NH3 = Pb + N2 + H2O =>
3 PbO + 2 NH3 = 3 Pb + N2 + 3 H2O
Ca2 + O2 = CaO =>
Ca2 + O2 = 2 CaO
SiO2(s) = Si(s) + O2(g) =>
SiO2(s) = Si(s) + O2(g)
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
C2H5OH + K2Cr2O7 + H2SO4 = CH3COOH + Cr2(SO4)3 + K2SO4 + H2O =>
3 C2H5OH + 2 K2Cr2O7 + 8 H2SO4 = 3 CH3COOH + 2 Cr2(SO4)3 + 2 K2SO4 + 11 H2O
Mg(s) + HI(aq) = MgI2(aq) + H2(g) =>
Mg(s) + 2 HI(aq) = MgI2(aq) + H2(g)
Fe + HCl = FeCl3 + H2 =>
2 Fe + 6 HCl = 2 FeCl3 + 3 H2
Fe(s) + O2(g) = FeO(s) =>
2 Fe(s) + O2(g) = 2 FeO(s)
FeSO4 + KMnO4 + H2SO4 = Fe2(SO4)3 + K2SO4 + MnSO4 + H2O =>
10 FeSO4 + 2 KMnO4 + 8 H2SO4 = 5 Fe2(SO4)3 + K2SO4 + 2 MnSO4 + 8 H2O
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