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Na2CO3 + 2 HCl = H2CO3 + 2 NaCl
K2Cr2O7 + H2S = K2CrO4 + Cr(OH)3 + S =>
2 K2Cr2O7 + 3 H2S = 2 K2CrO4 + 2 Cr(OH)3 + 3 S
FeOCr2O3 + K2CO3 + O2 = K2CrO4 + CO2 + Fe2O3 =>
4 FeOCr2O3 + 8 K2CO3 + 7 O2 = 8 K2CrO4 + 8 CO2 + 2 Fe2O3
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
Cu + O2 = CuO2 =>
Cu + O2 = CuO2
HClO3(aq) + HBr(aq) = HCl(aq) + Br2(g) + H2O(l) =>
HClO3(aq) + 6 HBr(aq) = HCl(aq) + 3 Br2(g) + 3 H2O(l)
C2H5NH2 + H2CO3 = HCO3 + C2H5NH3 =>
C2H5NH2 + H2CO3 = HCO3 + C2H5NH3
HCL + KOH = H2O + KCL =>
HCL + KOH = H2O + KCL
NaHCO3 = Na2CO3 + CO2 + H2O =>
2 NaHCO3 = Na2CO3 + CO2 + H2O
Na + HCl = H2 + NaCl =>
2 Na + 2 HCl = H2 + 2 NaCl
Al(NO2)3 + NH4Cl = AlCl3 + N2 + H2O =>
Al(NO2)3 + 3 NH4Cl = AlCl3 + 3 N2 + 6 H2O
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
Mg + H2O = MgO + H2 =>
Mg + H2O = MgO + H2
MgCO3(aq) + HCl(aq) = MgCl2(aq) + H2O(l) + CO2(g) =>
MgCO3(aq) + 2 HCl(aq) = MgCl2(aq) + H2O(l) + CO2(g)
Mg + HCl = MgCl + H2 =>
2 Mg + 2 HCl = 2 MgCl + H2
H2S + O2 = H2O + SO2 =>
2 H2S + 3 O2 = 2 H2O + 2 SO2
Fe + S = FeS =>
Fe + S = FeS
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
K + Cl2 = KCl =>
2 K + Cl2 = 2 KCl
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
ZnO + H2SO4 = ZnSO4 + H2O =>
ZnO + H2SO4 = ZnSO4 + H2O
Cu(NO3)2 + NaOH = Cu(OH)2 + NaNO3 =>
Cu(NO3)2 + 2 NaOH = Cu(OH)2 + 2 NaNO3
Al + CuSO4 = Al2(SO4)3 + Cu =>
2 Al + 3 CuSO4 = Al2(SO4)3 + 3 Cu
KJ + (NH4)2Cr2O7 + H2SO4 = J2 + Cr2(SO4)3 + (NH4)2SO4 + K2SO4 + H2O =>
6 KJ + (NH4)2Cr2O7 + 7 H2SO4 = 3 J2 + Cr2(SO4)3 + (NH4)2SO4 + 3 K2SO4 + 7 H2O
NaCl = NaCl =>
NaCl = NaCl
P + H2SO4 = H3PO4 + H20 + SO2 =>
20 P + 40 H2SO4 = 20 H3PO4 + H20 + 40 SO2
ZN + AGNO3 = AG + ZN(NO3)2 =>
ZN + 2 AGNO3 = 2 AG + ZN(NO3)2
NaCl = NaCl =>
NaCl = NaCl
Mg + H2O = MgO + H2 =>
Mg + H2O = MgO + H2
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
NaCl = NaCl =>
NaCl = NaCl
Mn2O7 + H2O = HMnO4 =>
Mn2O7 + H2O = 2 HMnO4
Cu2(OH)2CO3 = CO2 + CuO + H2O =>
Cu2(OH)2CO3 = CO2 + 2 CuO + H2O
FeCl + H2SO4 = Fe2SO4 + HCl =>
2 FeCl + H2SO4 = Fe2SO4 + 2 HCl
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
C + Ca3(PO4)3 + SiO2 = CaSiO3 + P4 + CO =>
36 C + 4 Ca3(PO4)3 + 12 SiO2 = 12 CaSiO3 + 3 P4 + 36 CO
CuSO4 + Zn = ZnSO4 + Cu =>
CuSO4 + Zn = ZnSO4 + Cu
Zn + HCl = ZnCl + H2 =>
2 Zn + 2 HCl = 2 ZnCl + H2
P2O5 + KOH = K3PO4 + H2O =>
P2O5 + 6 KOH = 2 K3PO4 + 3 H2O
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
NiF2(aq) + Fe2(SO4)3(aq) = NiSO4(aq) + FeF3(s) =>
3 NiF2(aq) + Fe2(SO4)3(aq) = 3 NiSO4(aq) + 2 FeF3(s)
NH3OH + HCl = NH3Cl + H2O =>
NH3OH + HCl = NH3Cl + H2O
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
C5H4O + O2 = CO2 + H2O =>
2 C5H4O + 11 O2 = 10 CO2 + 4 H2O
NaNO3 + NH4Cl = NaCl + NH4NO3 =>
NaNO3 + NH4Cl = NaCl + NH4NO3
SiF4 + NaOH = Na4SiO4 + NaF + H2O =>
SiF4 + 8 NaOH = Na4SiO4 + 4 NaF + 4 H2O
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
NH3OH + HCl = NH3Cl + H2O =>
NH3OH + HCl = NH3Cl + H2O
H2S + Cl2 = S8 + HCl =>
8 H2S + 8 Cl2 = S8 + 16 HCl
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
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