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2 HCl + CaCO3 = CaCl2 + CO2 + H2O
Al + I2 = AlI3 =>
2 Al + 3 I2 = 2 AlI3
HCl + Na2CO3 = NaCl + CO2 + H2O =>
2 HCl + Na2CO3 = 2 NaCl + CO2 + H2O
Ca(OH)2 + Al2(SO4)3 = CaSO4 + Al(OH)3 =>
3 Ca(OH)2 + Al2(SO4)3 = 3 CaSO4 + 2 Al(OH)3
P2S3 + HNO3 + H2O = H3PO4 + H2SO4 + NO =>
3 P2S3 + 28 HNO3 + 4 H2O = 6 H3PO4 + 9 H2SO4 + 28 NO
RCHO + Ag(NH3)2{+} + OH{-} = RCOO{-} + Ag + H2O + NH3 =>
RCHO + 2 Ag(NH3)2{+} + 3 OH{-} = RCOO{-} + 2 Ag + 2 H2O + 4 NH3
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
PBO + C = PB + CO2 =>
2 PBO + C = 2 PB + CO2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
RCHO + Ag(NH3)2{+} + OH{-} = RCOO{-} + Ag + H2O + NH3 =>
RCHO + 2 Ag(NH3)2{+} + 3 OH{-} = RCOO{-} + 2 Ag + 2 H2O + 4 NH3
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
SiO2 + HF = SiF4 + H2O =>
SiO2 + 4 HF = SiF4 + 2 H2O
Ca3(PO4)2 + H2SO4 = Ca(H2PO4)2 + CaSO4 =>
Ca3(PO4)2 + 2 H2SO4 = Ca(H2PO4)2 + 2 CaSO4
C6H12O4 + O2 = CO2 + H2O =>
C6H12O4 + 7 O2 = 6 CO2 + 6 H2O
HCOOH + Mg = (HCOO)2Mg + H2 =>
2 HCOOH + Mg = (HCOO)2Mg + H2
S + O2 = SO3 =>
2 S + 3 O2 = 2 SO3
Cr(s) + O2(g) = Cr2O3(s) =>
4 Cr(s) + 3 O2(g) = 2 Cr2O3(s)
C4H10 = C2H2 + H2 =>
C4H10 = 2 C2H2 + 3 H2
NH3 + H2So4 = (NH4)2So4 =>
2 NH3 + H2So4 = (NH4)2So4
Cl2 + FeBr3 = FeCl3 + Br2 =>
3 Cl2 + 2 FeBr3 = 2 FeCl3 + 3 Br2
C12H22O11 + H2O = C2H5OH + CO2 =>
C12H22O11 + H2O = 4 C2H5OH + 4 CO2
H2 + F2 = HF =>
H2 + F2 = 2 HF
FeO + O2 = Fe2O3 =>
4 FeO + O2 = 2 Fe2O3
Al2S3(s) + H2O(l) = Al(OH)3(s) + H2S(g) =>
Al2S3(s) + 6 H2O(l) = 2 Al(OH)3(s) + 3 H2S(g)
CuI2 + Fe = FeI2 + Cu =>
CuI2 + Fe = FeI2 + Cu
BN + F2 = BF3 + N2 =>
2 BN + 3 F2 = 2 BF3 + N2
ZNS + HBr = ZNBr2 + H2S =>
ZNS + 2 HBr = ZNBr2 + H2S
C12H22O11 + H2O = C2H5OH + CO2 =>
C12H22O11 + H2O = 4 C2H5OH + 4 CO2
Mg3N2 + H2O = NH3 + Mg(OH)2 =>
Mg3N2 + 6 H2O = 2 NH3 + 3 Mg(OH)2
CaCN2 + H2O = CaCO3 + NH3 =>
CaCN2 + 3 H2O = CaCO3 + 2 NH3
Na + C2H5OH = C2H5ONa + H2 =>
2 Na + 2 C2H5OH = 2 C2H5ONa + H2
Fe2O3(s) + CO(g) = Fe(s) + CO2(g) =>
Fe2O3(s) + 3 CO(g) = 2 Fe(s) + 3 CO2(g)
Zn + AgNo3 = Zn(No3)2 + Ag =>
Zn + 2 AgNo3 = Zn(No3)2 + 2 Ag
C5H12 + O2 = CO2 + H2O =>
C5H12 + 8 O2 = 5 CO2 + 6 H2O
C8H16 + O2 = CO2 + H2O =>
C8H16 + 12 O2 = 8 CO2 + 8 H2O
NH4NO3 = N2O + H2O =>
NH4NO3 = N2O + 2 H2O
MnO2(s) + HCl(aq) = Cl2(g) + MnCl2(aq) + H2O(l) =>
MnO2(s) + 4 HCl(aq) = Cl2(g) + MnCl2(aq) + 2 H2O(l)
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
K + H2O = H2 + KOH =>
2 K + 2 H2O = H2 + 2 KOH
P2S3 + HNO3 + H2O = H3PO4 + S + NO =>
3 P2S3 + 10 HNO3 + 4 H2O = 6 H3PO4 + 9 S + 10 NO
CO2(g) + CaSiO3(s) + H2O(l) = SiO2(s) + Ca(HCO3)2(aq) =>
2 CO2(g) + CaSiO3(s) + H2O(l) = SiO2(s) + Ca(HCO3)2(aq)
Mg + HNO3 = Mg(NO3)2 + NH4NO3 + H2O =>
4 Mg + 10 HNO3 = 4 Mg(NO3)2 + NH4NO3 + 3 H2O
P3O6 + I2 = P2I4 + P4O10 =>
10 P3O6 + 6 I2 = 3 P2I4 + 6 P4O10
Ba + HOH = H2 + Ba(OH)2 =>
Ba + 2 HOH = H2 + Ba(OH)2
Fe(s) + S(l) = Fe2S3(s) =>
2 Fe(s) + 3 S(l) = Fe2S3(s)
NO2(g) + H2O(l) = HNO3(aq) + NO(g) =>
3 NO2(g) + H2O(l) = 2 HNO3(aq) + NO(g)
P4O10 + H2O = H3PO4 =>
P4O10 + 6 H2O = 4 H3PO4
Al + HNO3 = AlNO3 + H =>
Al + HNO3 = AlNO3 + H
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
P4O10 + H2O = H3PO4 =>
P4O10 + 6 H2O = 4 H3PO4
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