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Pb(NO3)2 + 2 KI = PbI2 + 2 KNO3
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
C + H2 = CH4 =>
C + 2 H2 = CH4
Ca(C2H3O2)2 + H3PO4 = Ca3(PO4)2 + HC2H3O2 =>
3 Ca(C2H3O2)2 + 2 H3PO4 = Ca3(PO4)2 + 6 HC2H3O2
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
HJ = H2 + J2 =>
2 HJ = H2 + J2
BaSO4 + C = BaS + CO =>
BaSO4 + 4 C = BaS + 4 CO
H3PO4 = P2O5 + H2O =>
2 H3PO4 = P2O5 + 3 H2O
CaO + C = CaC2 + CO =>
CaO + 3 C = CaC2 + CO
C18H34O2 + O2 = CO2 + H20 =>
10 C18H34O2 + 170 O2 = 180 CO2 + 17 H20
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
Zn2 + I2 = ZnI2 =>
Zn2 + 2 I2 = 2 ZnI2
NaOH + Pb(No3)2 = NaNo3 + Pb(OH)2 =>
2 NaOH + Pb(No3)2 = 2 NaNo3 + Pb(OH)2
CL + O2 = CLO2 =>
CL + O2 = CLO2
Zn + I2 = ZnI2 =>
Zn + I2 = ZnI2
C18H34O2 + O2 = CO2 + H2O =>
2 C18H34O2 + 51 O2 = 36 CO2 + 34 H2O
Nitrogen + oxygen = dinitrogenpentoxide =>
2 N2 + 5 O2 = 2 N2O5
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
HCOOH + Ch3OH = HCOOCh3 + H2O =>
HCOOH + Ch3OH = HCOOCh3 + H2O
Cl + O2 = ClO2 =>
Cl + O2 = ClO2
CaO + C = CaC2 + CO =>
CaO + 3 C = CaC2 + CO
NaCl = Na + Cl2 =>
2 NaCl = 2 Na + Cl2
SnCl2 + HgCl2 = SnCl4 + Hg2Cl2 =>
SnCl2 + 2 HgCl2 = SnCl4 + Hg2Cl2
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
CaO + H3PO4 = Ca3(PO4)2 + H2O =>
3 CaO + 2 H3PO4 = Ca3(PO4)2 + 3 H2O
Si + F2 = SiF4 =>
Si + 2 F2 = SiF4
CH3CH2CH3 + O2 = CO2 + H2O =>
CH3CH2CH3 + 5 O2 = 3 CO2 + 4 H2O
C2H2 + Br2 = C2H2Br2 =>
C2H2 + Br2 = C2H2Br2
AlCl + NaH = AlH + NaCl =>
AlCl + NaH = AlH + NaCl
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
NH4Cl + NaOH = NaCl + NH3 + H2O =>
NH4Cl + NaOH = NaCl + NH3 + H2O
Cr2O3 + Al = Al3O3 + Cr =>
Cr2O3 + 3 Al = Al3O3 + 2 Cr
CH3NH2 + O2 = CO2 + H2O + N2 =>
4 CH3NH2 + 9 O2 = 4 CO2 + 10 H2O + 2 N2
Zn + Fe2(So4)3 = ZnSo4 + Fe =>
3 Zn + Fe2(So4)3 = 3 ZnSo4 + 2 Fe
Na + S = Na2S =>
2 Na + S = Na2S
H2SO4 + CuO = CuSO4 + H2O =>
H2SO4 + CuO = CuSO4 + H2O
C100H202 + O2 = H2O + CO2 =>
2 C100H202 + 301 O2 = 202 H2O + 200 CO2
NO2 = NO + O2 =>
2 NO2 = 2 NO + O2
Pb(CH3COO)2 + H2S = PbS + CH3COOH =>
Pb(CH3COO)2 + H2S = PbS + 2 CH3COOH
Na + S = Na2S =>
2 Na + S = Na2S
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Fe2O3 + KClO3 + KOH = K2FeO4 + H20 + KCl =>
15 Fe2O3 + 5 KClO3 + 60 KOH = 30 K2FeO4 + 3 H20 + 5 KCl
C + SO2 = CS2 + CO =>
5 C + 2 SO2 = CS2 + 4 CO
CaCO3(s) + HCl(aq) = H2O(l) + CO2(g) + CaCl2(aq) =>
CaCO3(s) + 2 HCl(aq) = H2O(l) + CO2(g) + CaCl2(aq)
CA(OH)2 + HNO3 = CA(NO3)2 + H2O =>
CA(OH)2 + 2 HNO3 = CA(NO3)2 + 2 H2O
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
C18H34O2 + O2 = CO2 + H2O =>
2 C18H34O2 + 51 O2 = 36 CO2 + 34 H2O
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