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4 Fe + 3 O2 = 2 Fe2O3
C7H10N2O2 + O2 = CO2 + H2O + NH3 =>
C7H10N2O2 + 7 O2 = 7 CO2 + 2 H2O + 2 NH3
H{+} + Cr2O7{-2} + SO3{-2} = Cr{+3} + SO4{-2} + H2O =>
8 H{+} + Cr2O7{-2} + 3 SO3{-2} = 2 Cr{+3} + 3 SO4{-2} + 4 H2O
CH3COONa + Na2SO4 = Na + CH3COOSO4 =>
CH3COONa + Na2SO4 = 3 Na + CH3COOSO4
Eu2O3 + Zn + HCl = EuCl2 + ZnCl2 + H2O =>
Eu2O3 + Zn + 6 HCl = 2 EuCl2 + ZnCl2 + 3 H2O
Mg2CO3(OH)2 = MgO + CO2 + H2O =>
Mg2CO3(OH)2 = 2 MgO + CO2 + H2O
Fe3(PO4)2 + Ca(OH)2 = Fe(OH)2 + Ca3(PO4)2 =>
Fe3(PO4)2 + 3 Ca(OH)2 = 3 Fe(OH)2 + Ca3(PO4)2
HCOOH + Sr(OH)2 = H2O + HCOO + Sr =>
2 HCOOH + Sr(OH)2 = 2 H2O + 2 HCOO + Sr
NaPO3 + AgNO3 = AgPO3 + NaNO3 =>
NaPO3 + AgNO3 = AgPO3 + NaNO3
CCl4 + Br = CBr4 + Cl2 =>
CCl4 + 4 Br = CBr4 + 2 Cl2
B + O2 = BO =>
2 B + O2 = 2 BO
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
C6H14O4(g) + O2(g) = CO2(g) + H2O =>
2 C6H14O4(g) + 15 O2(g) = 12 CO2(g) + 14 H2O
B + O2 = BO2 =>
B + O2 = BO2
CaCl2(aq) + Al2(SO4)3(aq) = CaSO4(aq) + AlCl3(aq) =>
3 CaCl2(aq) + Al2(SO4)3(aq) = 3 CaSO4(aq) + 2 AlCl3(aq)
HCHO2 + H2O = H3O + CHO2 =>
HCHO2 + H2O = H3O + CHO2
CsCl + MgSO4 = Cs2SO4 + MgCl2 =>
2 CsCl + MgSO4 = Cs2SO4 + MgCl2
Mg(OH)2 + H2SiO3 = Mg(SiO3) + H2O =>
Mg(OH)2 + H2SiO3 = Mg(SiO3) + 2 H2O
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
AgNO3 + Na2CrO4 = (NaNO3) + Ag2CrO4 =>
2 AgNO3 + Na2CrO4 = 2(NaNO3) + Ag2CrO4
NaMnO4 = Na2MnO4 + MnO2 + O =>
2 NaMnO4 = Na2MnO4 + MnO2 + 2 O
C2H(g) + O(g) = CO2(g) + H2O(g) =>
2 C2H(g) + 9 O(g) = 4 CO2(g) + H2O(g)
Mg + HCI = (MgCI)2 + (H)2 =>
2 Mg + 2 HCI = (MgCI)2 + (H)2
KNO3 + Al + NaOH + H2O = K[Al(OH)4] + NaNO3 + NH3 =>
8 KNO3 + 8 Al + 5 NaOH + 18 H2O = 8 K[Al(OH)4] + 5 NaNO3 + 3 NH3
SiC + HNO3 = SiO2 + CO2 + NO + H2O =>
3 SiC + 8 HNO3 = 3 SiO2 + 3 CO2 + 8 NO + 4 H2O
H3PO4 + NaOH = H2O + Na2HPO4 =>
H3PO4 + 2 NaOH = 2 H2O + Na2HPO4
C2H5ONa + H2S = C2H5OH + NaHS =>
C2H5ONa + H2S = C2H5OH + NaHS
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
KCl + Ag2CrO4 = K2CrO4 + AgCl =>
2 KCl + Ag2CrO4 = K2CrO4 + 2 AgCl
K2CO3 + H2S = K2CO3S + H2 =>
K2CO3 + H2S = K2CO3S + H2
CH3CCH3CCH3CH3 + KMnO4 + H2O = CH3CCH3OHCCH3OHCH3 + KOH + MnO2 =>
3 CH3CCH3CCH3CH3 + 2 KMnO4 + 4 H2O = 3 CH3CCH3OHCCH3OHCH3 + 2 KOH + 2 MnO2
Zn + H3O = Zn(OH)2 + H2 =>
Zn + 2 H3O = Zn(OH)2 + 2 H2
Cu2O + N2O = Cu + NO =>
Cu2O + N2O = 2 Cu + 2 NO
NH3 + H2O = NO + HH =>
2 NH3 + 2 H2O = 2 NO + 5 HH
Zn(No3)2 + NaOH = NaNo3 + Zn(OH)2 =>
Zn(No3)2 + 2 NaOH = 2 NaNo3 + Zn(OH)2
NH4Br + AgC2H3O2 = NH4(C2H3O2) + AgBr =>
NH4Br + AgC2H3O2 = NH4(C2H3O2) + AgBr
Zn + CuO = ZnO + Cu =>
Zn + CuO = ZnO + Cu
SO3 + CO2 = CS2 + O2 =>
2 SO3 + CO2 = CS2 + 4 O2
CH3CCH3CCH3CH3 + KMnO4 + H2O = CH3CCH3OHCCH3OHCH3 + KOH + MnO2 =>
3 CH3CCH3CCH3CH3 + 2 KMnO4 + 4 H2O = 3 CH3CCH3OHCCH3OHCH3 + 2 KOH + 2 MnO2
CdCl2 + NaOH = CdOH + Cl2Na =>
CdCl2 + NaOH = CdOH + Cl2Na
NH3 + NO = N2 + H2O =>
4 NH3 + 6 NO = 5 N2 + 6 H2O
TiO2 + C2 + Cl2 = CO2 + TiCl4 =>
2 TiO2 + C2 + 4 Cl2 = 2 CO2 + 2 TiCl4
K2CO3 + Cr2O3 = KCrO2 + CO2 =>
K2CO3 + Cr2O3 = 2 KCrO2 + CO2
K2CO3 + CH3CO2 = KCH3CO2 + CO2 + H2O =>
7 K2CO3 + 16 CH3CO2 = 14 KCH3CO2 + 11 CO2 + 3 H2O
P4 + NO3 + H2O = PO4{-3} + NO + H{+} =>
P4 + 5 NO3 + 6 H2O = 4 PO4{-3} + 5 NO + 12 H{+}
Ba + MgCO3 = BaCO3 + Mg =>
Ba + MgCO3 = BaCO3 + Mg
NaNO3 + Mg = Na + Mg3N2 + MgO =>
2 NaNO3 + 9 Mg = 2 Na + Mg3N2 + 6 MgO
CaO + NaOH = NaO + Ca(OH) =>
CaO + NaOH = NaO + Ca(OH)
Ni(NO3)2 + Na2SO4 = NiSO4 + Na2(NO3)2 =>
Ni(NO3)2 + Na2SO4 = NiSO4 + Na2(NO3)2
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