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3 Ca + 3 H2SO4 = Ca3(SO4)3 + 3 H2
KHCo3 + Na2O = NaHCo3 + K2O =>
2 KHCo3 + Na2O = 2 NaHCo3 + K2O
Fe2(SO4)3 + Ba(OH)2 = Fe(OH)3 + BaSO4 =>
Fe2(SO4)3 + 3 Ba(OH)2 = 2 Fe(OH)3 + 3 BaSO4
HCN + H2S2O3 = HCNS + H2SO3 =>
HCN + H2S2O3 = HCNS + H2SO3
SO3 = S + SO4 =>
4 SO3 = S + 3 SO4
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
Ni + CaCl2 = Ca + NiCl3 =>
2 Ni + 3 CaCl2 = 3 Ca + 2 NiCl3
Na + Mg3N2 = Na3N + Mg =>
6 Na + Mg3N2 = 2 Na3N + 3 Mg
AgNO3(s) + BaCl2(aq) = AgCl(s) + Ba(NO3)2(aq) =>
2 AgNO3(s) + BaCl2(aq) = 2 AgCl(s) + Ba(NO3)2(aq)
Zn(OH)2 + K2CO3 = K2ZnO2 + CO2 + H2O =>
Zn(OH)2 + K2CO3 = K2ZnO2 + CO2 + H2O
BaCO3 + HCl = BaCl2 + CO2 + H2O =>
BaCO3 + 2 HCl = BaCl2 + CO2 + H2O
KClO3 + SnSO4 + KOH = KCl + K2SnO3 + K2SO4 + H2O =>
KClO3 + 3 SnSO4 + 12 KOH = KCl + 3 K2SnO3 + 3 K2SO4 + 6 H2O
HCl + Na + O = NaCl + H2O =>
2 HCl + 2 Na + O = 2 NaCl + H2O
K + CuI2 = Cu + KI =>
2 K + CuI2 = Cu + 2 KI
Cl2 + NaOH + NaHSO3 = Na2SO4 + NaCl + H2O =>
Cl2 + 3 NaOH + NaHSO3 = Na2SO4 + 2 NaCl + 2 H2O
C9HO + O = C2O + HO =>
2 C9HO + 9 O = 9 C2O + 2 HO
(NH4)2S + BiCl3 = Bi2S3 + NH3 + HCl =>
3(NH4)2S + 2 BiCl3 = Bi2S3 + 6 NH3 + 6 HCl
HCN + Sn(OH)3 = Sn(CN)3 + H2O =>
3 HCN + Sn(OH)3 = Sn(CN)3 + 3 H2O
Kl + Br2 = Br2Kl =>
Kl + Br2 = Br2Kl
C3H7OCH7 + O2 = CO2 + H2O =>
C3H7OCH7 + 7 O2 = 4 CO2 + 7 H2O
(CuOH)2SO4 + H2SO4 = Cu3(OHSO4)2 + H2O =>
3(CuOH)2SO4 + H2SO4 = 2 Cu3(OHSO4)2 + 2 H2O
SiH + NH3 = Si3N4 + H2 =>
6 SiH + 8 NH3 = 2 Si3N4 + 15 H2
Al + H2SO4 = Al2(SO4) + H2S + H2O =>
8 Al + 5 H2SO4 = 4 Al2(SO4) + H2S + 4 H2O
CuCl2 + ZnO = CuO + Cl2Zn =>
CuCl2 + ZnO = CuO + Cl2Zn
P2O5 + NaOH = H2O + Na3PO4 =>
P2O5 + 6 NaOH = 3 H2O + 2 Na3PO4
KSO4MgI = KIMgSO4 =>
KSO4MgI = KIMgSO4
NaBr + CCl4 = NaCl4 + CBr =>
NaBr + CCl4 = NaCl4 + CBr
FeS + HCI = H2S + Fe(CI)2 =>
FeS + 2 HCI = H2S + Fe(CI)2
HCOOH + Ca = (HCOO)Ca + H2 =>
2 HCOOH + 2 Ca = 2(HCOO)Ca + H2
CaC2 + N2 = CaCN2 + C2 =>
2 CaC2 + 2 N2 = 2 CaCN2 + C2
CH3OCH3 + CO = CH3COOCH3 =>
CH3OCH3 + CO = CH3COOCH3
AgNo3 + MgI2 = AgI + Mg(No3)2 =>
2 AgNo3 + MgI2 = 2 AgI + Mg(No3)2
Al2(SO4)3(aq) + K3PO4(aq) = AlPO4(s) + K2SO4(aq) =>
Al2(SO4)3(aq) + 2 K3PO4(aq) = 2 AlPO4(s) + 3 K2SO4(aq)
BaCO3 + NaCl = Na2CO3 + BaCl2 =>
BaCO3 + 2 NaCl = Na2CO3 + BaCl2
Al + HNO3 = Al(NO3)3 + NO2 + H2O =>
Al + 6 HNO3 = Al(NO3)3 + 3 NO2 + 3 H2O
P2O5 + NaOH = Na2HPO4 + H2O =>
P2O5 + 4 NaOH = 2 Na2HPO4 + H2O
HI(aq) + Na2SO3(aq) = NaI(aq) + H2O(l) + SO2(g) =>
2 HI(aq) + Na2SO3(aq) = 2 NaI(aq) + H2O(l) + SO2(g)
Br + I{-} = Br{-} + I2 =>
2 Br + 2 I{-} = 2 Br{-} + I2
K + CuI2 = Cu + KI =>
2 K + CuI2 = Cu + 2 KI
HBr + Ag2CO3 = CO2 + AgBr + H2O =>
2 HBr + Ag2CO3 = CO2 + 2 AgBr + H2O
BaOH2O = Ba(OH)2 =>
BaOH2O = Ba(OH)2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Zn + HCl = ZnCl2 + H2 = =>
Zn + 2 HCl = ZnCl2 + H2
NaCl(aq) + CH3COOH(aq) + C6H5NH2(aq) = C6H5NH3Cl(aq) + CH3COONa =>
NaCl(aq) + CH3COOH(aq) + C6H5NH2(aq) = C6H5NH3Cl(aq) + CH3COONa
AgNO3(s) + BaCl2(aq) = AgCl(s) + Ba(NO3)2(aq) =>
2 AgNO3(s) + BaCl2(aq) = 2 AgCl(s) + Ba(NO3)2(aq)
Cr + Ni(NO2)2 = Ni + Cr(NO2)3 =>
2 Cr + 3 Ni(NO2)2 = 3 Ni + 2 Cr(NO2)3
CuCO3 + HCl = CuCl2 + H2CO3 =>
CuCO3 + 2 HCl = CuCl2 + H2CO3
KHCO3 = K2CO3H2OCO2 =>
2 KHCO3 = K2CO3H2OCO2
HI + ICl = I + HCl =>
HI + ICl = 2 I + HCl
Zn + CuCI2 = Cu + ZnCI2 =>
Zn + CuCI2 = Cu + ZnCI2
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