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Ag2S + 4 KCN = 2 KAg(CN)2 + K2S
Cu + HCl = CuCl2 + H2 =>
Cu + 2 HCl = CuCl2 + H2
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
SCl2 + K2Cr2O7 + H2SO4 = KCl + CrCl3 + Cr2(SO4)3 + H2O =>
9 SCl2 + 6 K2Cr2O7 + 6 H2SO4 = 12 KCl + 2 CrCl3 + 5 Cr2(SO4)3 + 6 H2O
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
NH3 + H3PO4 = (NH4)3PO4 =>
3 NH3 + H3PO4 = (NH4)3PO4
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
Fe + HNO3 = Fe(NO3)3 + H2O + N2O =>
8 Fe + 30 HNO3 = 8 Fe(NO3)3 + 15 H2O + 3 N2O
SO3 + MNO4 = SO4 + MN =>
4 SO3 + MNO4 = 4 SO4 + MN
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Au + HCl + NaClO = AuCl3 + NaCl + H2O =>
2 Au + 6 HCl + 3 NaClO = 2 AuCl3 + 3 NaCl + 3 H2O
K + Br2 = KBr =>
2 K + Br2 = 2 KBr
HClO4(aq) + Ba(OH)2(s) = Ba(ClO4)2(s) + H2O(l) =>
2 HClO4(aq) + Ba(OH)2(s) = Ba(ClO4)2(s) + 2 H2O(l)
Cu(NO3)2 + Na2(SO4) = Cu(SO4) + Na(NO3) =>
Cu(NO3)2 + Na2(SO4) = Cu(SO4) + 2 Na(NO3)
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
KHF2 = KF + H2F2 =>
2 KHF2 = 2 KF + H2F2
HCl + K2SO3 = KCl + H2O + SO2 =>
2 HCl + K2SO3 = 2 KCl + H2O + SO2
P4O10 + H2O = H3PO4 =>
P4O10 + 6 H2O = 4 H3PO4
MgCO3 = Mg + CO3 =>
MgCO3 = Mg + CO3
KOH + MgSO4 = Mg(OH)2 + K2SO4 =>
2 KOH + MgSO4 = Mg(OH)2 + K2SO4
Au + HCl + NaClO = AuCl3 + NaCl + H2O =>
2 Au + 6 HCl + 3 NaClO = 2 AuCl3 + 3 NaCl + 3 H2O
CaC2 + H2O = Ca(OH)2 + C2H2 =>
CaC2 + 2 H2O = Ca(OH)2 + C2H2
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
H2SO4 + Mg(OH)2 = H2O + MgSO4 =>
H2SO4 + Mg(OH)2 = 2 H2O + MgSO4
CaCO3 + HCl = CaCl2 + CO2 + H2O =>
CaCO3 + 2 HCl = CaCl2 + CO2 + H2O
Co(NO3)2(aq) + H2S(g) = CoS(s) + HNO3(aq) =>
Co(NO3)2(aq) + H2S(g) = CoS(s) + 2 HNO3(aq)
K3PO4 + Al(NO3)3 = KNO3 + AlPO4 =>
K3PO4 + Al(NO3)3 = 3 KNO3 + AlPO4
Au2S3 + H2 = Au + H2S =>
Au2S3 + 3 H2 = 2 Au + 3 H2S
C6H12O2 + O2 = CO2 + H2O =>
C6H12O2 + 8 O2 = 6 CO2 + 6 H2O
NaOH + H3PO4 = Na3PO4 + H2O =>
3 NaOH + H3PO4 = Na3PO4 + 3 H2O
N2H4 = NH3 + N2 =>
3 N2H4 = 4 NH3 + N2
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Pb(NO3)2 = PbO + NO2 + O2 =>
2 Pb(NO3)2 = 2 PbO + 4 NO2 + O2
Fe(s) + Cd(NO3)2(aq) = Fe(NO3)3(aq) + Cd(s) =>
2 Fe(s) + 3 Cd(NO3)2(aq) = 2 Fe(NO3)3(aq) + 3 Cd(s)
ClO2 + H2O = HClO2 + HClO3 =>
2 ClO2 + H2O = HClO2 + HClO3
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
CH3OH + O2 = CO2 + H2O =>
2 CH3OH + 3 O2 = 2 CO2 + 4 H2O
Zn + CuBr2 = ZnCu + Br2 =>
Zn + CuBr2 = ZnCu + Br2
Cr2O3 + O2 = CrO3 =>
2 Cr2O3 + 3 O2 = 4 CrO3
Cr + O2 = Cr2O3 =>
4 Cr + 3 O2 = 2 Cr2O3
AsBr3 + F2 = AsF5 + Br2 =>
2 AsBr3 + 5 F2 = 2 AsF5 + 3 Br2
Fe2(CO3)3(s) = Fe2O3(s) + CO2(g) =>
Fe2(CO3)3(s) = Fe2O3(s) + 3 CO2(g)
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Al2S3 + H20 + O2 = Al(OH3) + S =>
10 Al2S3 + 3 H20 + 10 O2 = 20 Al(OH3) + 30 S
Sn(s) + P(s) = Sn3P2(s) =>
3 Sn(s) + 2 P(s) = Sn3P2(s)
C4H10 + HCl = C4H9Cl + H2 =>
C4H10 + HCl = C4H9Cl + H2
CaCl2 + Na2CO3 = CaCO3 + NaCl =>
CaCl2 + Na2CO3 = CaCO3 + 2 NaCl
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