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2(H2N)2CO + 3 O2 = 4 H2O + 2 CO2 + 4 N
K2Cr2O7 + H2SO4 + C6H6O2 = C6H6O3 + Cr2(SO4)3 + H2O + K2SO4 =>
K2Cr2O7 + 4 H2SO4 + 3 C6H6O2 = 3 C6H6O3 + Cr2(SO4)3 + 4 H2O + K2SO4
Zn + OH{-} + H2O = [Zn(OH)4]{2-} + H2 =>
Zn + 2 OH{-} + 2 H2O = [Zn(OH)4]{2-} + H2
Cu2No3 + NaOH = Cu2OH + NaNo3 =>
Cu2No3 + NaOH = Cu2OH + NaNo3
KO4 + CO2 = K3C2O2 + O =>
3 KO4 + 2 CO2 = K3C2O2 + 14 O
CH3NH2 + NaCl = CH3NH2Na + Cl =>
CH3NH2 + NaCl = CH3NH2Na + Cl
NaHS + CuCl2 = CuS + NaCl + H2S =>
2 NaHS + CuCl2 = CuS + 2 NaCl + H2S
Na2O + SnO2 = Na2SnO3 =>
Na2O + SnO2 = Na2SnO3
KI + K2Cr2O7 + H3SO4 = I2 + Cr2(SO4)3 + K2SO4 + H2O =>
4 KI + 3 K2Cr2O7 + 14 H3SO4 = 2 I2 + 3 Cr2(SO4)3 + 5 K2SO4 + 21 H2O
U3O8(s) + HNO3(aq) = UO2(NO3)2(aq) + NO2(g) + H2O(l) =>
U3O8(s) + 8 HNO3(aq) = 3 UO2(NO3)2(aq) + 2 NO2(g) + 4 H2O(l)
C4H2O3 + Zn + HCl + H2O = C4H6O4 + ZnCl2 =>
C4H2O3 + Zn + 2 HCl + H2O = C4H6O4 + ZnCl2
Cu2S + O2 = Cu2O + SO2 =>
2 Cu2S + 3 O2 = 2 Cu2O + 2 SO2
FeS4 = Fe5S4 + S =>
5 FeS4 = Fe5S4 + 16 S
C2H5O4 + O = CO2 + H2O =>
2 C2H5O4 + 5 O = 4 CO2 + 5 H2O
MnCl2 + HNO3 + H3PO4 = NO + MnPO4 + HCl + H2O =>
3 MnCl2 + HNO3 + 3 H3PO4 = NO + 3 MnPO4 + 6 HCl + 2 H2O
H2 + F2(g) = HF(g) =>
H2 + F2(g) = 2 HF(g)
KOH(aq) + H2SO4 = H2O + K2SO4 =>
2 KOH(aq) + H2SO4 = 2 H2O + K2SO4
Fe(NO2)2 + HOH = Fe(OH)2 + HNO2 =>
Fe(NO2)2 + 2 HOH = Fe(OH)2 + 2 HNO2
V(NO3)5 + AgCH3CO2 = VCH3CO2 + Ag(NO3)5 =>
V(NO3)5 + AgCH3CO2 = VCH3CO2 + Ag(NO3)5
Al + CaCl2 = CaAlCl2 =>
Al + CaCl2 = CaAlCl2
NH4 + Cu(OH)2 = Cu2 + NH3 + H2O =>
4 NH4 + 2 Cu(OH)2 = Cu2 + 4 NH3 + 4 H2O
C14H18N2O5 + O2 = CO + N2 + H2O =>
C14H18N2O5 + 9 O2 = 14 CO + N2 + 9 H2O
C17H33COONa + KMnO4 + H2O = C17H33(OH)2COONa + MnO2 + KOH =>
3 C17H33COONa + 2 KMnO4 + 4 H2O = 3 C17H33(OH)2COONa + 2 MnO2 + 2 KOH
P + Q = PQ =>
P + Q = PQ
Ca + H2O = CaH4 + O2 =>
Ca + 2 H2O = CaH4 + O2
Na2(MnO4) + HI = MnI2 + NaI + H2O + I2 =>
Na2(MnO4) + 8 HI = MnI2 + 2 NaI + 4 H2O + 2 I2
Ba(OH)2 + H3SbO4 = H2O + Ba3(SbO4)2 =>
3 Ba(OH)2 + 2 H3SbO4 = 6 H2O + Ba3(SbO4)2
MgO + NO2 = MgO2 + NO =>
MgO + NO2 = MgO2 + NO
NH4OH(l) + KAl(SO4)2*12H2O = Al(OH)3(s) + (NH4)2SO4(aq) + KOH(aq) + H2O(l) =>
4 NH4OH(l) + KAl(SO4)2*12H2O = Al(OH)3(s) + 2(NH4)2SO4(aq) + KOH(aq) + 12 H2O(l)
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
C + SO2 = CS2 + CO =>
5 C + 2 SO2 = CS2 + 4 CO
H3C6H5O7(aq) + NaOH(aq) = Na3C6H5O7(aq) + H2O(l) =>
H3C6H5O7(aq) + 3 NaOH(aq) = Na3C6H5O7(aq) + 3 H2O(l)
Be3(PO4)2 + (NH4)2O = BeO + (NH4)3PO4 =>
Be3(PO4)2 + 3(NH4)2O = 3 BeO + 2(NH4)3PO4
Ca(NO3)2 + Fe = Fe(NO3)3 + Ca =>
3 Ca(NO3)2 + 2 Fe = 2 Fe(NO3)3 + 3 Ca
Mg2 + N3 = Mg3N2 =>
9 Mg2 + 4 N3 = 6 Mg3N2
NaCo3KOH = NaOHKCo3 =>
NaCo3KOH = NaOHKCo3
Cr(OH)2NO3 + HNO3 = Cr(NO3)3 + H2O =>
Cr(OH)2NO3 + 2 HNO3 = Cr(NO3)3 + 2 H2O
AlCl3 + FePO4 = AlPO4 + FeCl3 =>
AlCl3 + FePO4 = AlPO4 + FeCl3
AgI + NaNO3 + NH3 + H2O = AgNO3 + NH4I + NaH =>
5 AgI + 4 NaNO3 + 6 NH3 + 3 H2O = 5 AgNO3 + 5 NH4I + 4 NaH
Ca(H2PO4)2*H2O + H2SO4 = CaSO4*H2O + H3PO4 =>
Ca(H2PO4)2*H2O + H2SO4 = CaSO4*H2O + 2 H3PO4
S8 + F2 = SF6 =>
S8 + 24 F2 = 8 SF6
C6H5COOHHNO3 = C6H4COOHNO2H2O =>
C6H5COOHHNO3 = C6H4COOHNO2H2O
C3H8 + O2 = CO2 + H5O =>
5 C3H8 + 19 O2 = 15 CO2 + 8 H5O
Al4(C)3 + H2O = Al(OH)3 + CH4 =>
Al4(C)3 + 12 H2O = 4 Al(OH)3 + 3 CH4
NH3 + HBr = Br2 + NH4 =>
2 NH3 + 2 HBr = Br2 + 2 NH4
SI + O = SIO =>
SI + O = SIO
Al4C3 + O2 = Al2O3 + Al2(CO3)3 =>
Al4C3 + 6 O2 = Al2O3 + Al2(CO3)3
Mg + P = Mg3P2 =>
3 Mg + 2 P = Mg3P2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
MnO4 + Al = Mn + Al2O =>
MnO4 + 8 Al = Mn + 4 Al2O
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