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2 Ca + O2 = 2 CaO
Al + NAOH + H2O = NAAl(OH)4 + H2 =>
2 Al + 2 NAOH + 6 H2O = 2 NAAl(OH)4 + 3 H2
NaNO2 + HCl = NaCl + HNO2 =>
NaNO2 + HCl = NaCl + HNO2
ZnS + HBr = ZnBr2 + H2S =>
ZnS + 2 HBr = ZnBr2 + H2S
H2SO4(l) + NaOH(l) = Na2SO4(l) + H2O(l) =>
H2SO4(l) + 2 NaOH(l) = Na2SO4(l) + 2 H2O(l)
Ag + NO3{-} + H{+} = Ag{+} + NO + H2O =>
3 Ag + NO3{-} + 4 H{+} = 3 Ag{+} + NO + 2 H2O
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
HNO3 + H2S = NO2 + H2O + S =>
2 HNO3 + H2S = 2 NO2 + 2 H2O + S
FeCr2O7 + K2CO3 + O2 = K2CrO4 + Fe2O3 + CO2 =>
4 FeCr2O7 + 8 K2CO3 + O2 = 8 K2CrO4 + 2 Fe2O3 + 8 CO2
CH3COOH + O2 = H2O + CO2 =>
CH3COOH + 2 O2 = 2 H2O + 2 CO2
Zn = Zn + + e- =>
Zn = Zn
C6H6 + HNO3 = C6H5NO2 + H2O =>
C6H6 + HNO3 = C6H5NO2 + H2O
C + ZnO = Zn + CO2 =>
C + 2 ZnO = 2 Zn + CO2
CH3OH + O2 = H2CO + H2O =>
2 CH3OH + O2 = 2 H2CO + 2 H2O
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Cd(NO3)2 + Na2S = CdS + NaNO3 =>
Cd(NO3)2 + Na2S = CdS + 2 NaNO3
H2 + F2 = HF =>
H2 + F2 = 2 HF
Al + H2O = Al(OH)4 + H =>
Al + 4 H2O = Al(OH)4 + 4 H
MnO4{-} + Fe{2+} + H{+} = Mn{2+} + Fe{3+} + H2O =>
MnO4{-} + 5 Fe{2+} + 8 H{+} = Mn{2+} + 5 Fe{3+} + 4 H2O
Br + NaI = sodiumbromide + iodine =>
2 Br + 2 NaI = 2 NaBr + I2
C57H104O6 + H2O = C3H8O3 + C18H34O2 =>
C57H104O6 + 3 H2O = C3H8O3 + 3 C18H34O2
Al2O3 + H2O = Al(OH)3 =>
Al2O3 + 3 H2O = 2 Al(OH)3
H2S + O2 = H2O + SO2 =>
2 H2S + 3 O2 = 2 H2O + 2 SO2
Na + S2O3 = Na2S2O3 =>
2 Na + S2O3 = Na2S2O3
KMnO4 + H2SO4 + Sb = K2SO4 + MnSO4 + Sb2O2 + H2O =>
4 KMnO4 + 6 H2SO4 + 10 Sb = 2 K2SO4 + 4 MnSO4 + 5 Sb2O2 + 6 H2O
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
C14H28O2 + O2 = CO2 + H2O =>
C14H28O2 + 20 O2 = 14 CO2 + 14 H2O
KHSO4 + HCl = KCl + H2SO4 =>
KHSO4 + HCl = KCl + H2SO4
CuO + H2 = Cu + H2O =>
CuO + H2 = Cu + H2O
MGO + C = MG + CO =>
MGO + C = MG + CO
C10H10O4 + H2O = C3H6O2 + C7H6O3 =>
C10H10O4 + H2O = C3H6O2 + C7H6O3
C6H14 + O2 = CO2 + H2O =>
2 C6H14 + 19 O2 = 12 CO2 + 14 H2O
PbO2 + C = Pb + CO2 =>
PbO2 + C = Pb + CO2
CH3OH + KMNO4 + H2SO4 = HCOH + MNSO4 + K2SO4 + H2O =>
5 CH3OH + 2 KMNO4 + 3 H2SO4 = 5 HCOH + 2 MNSO4 + K2SO4 + 8 H2O
PCl3 + Cl2 = PCl5 =>
PCl3 + Cl2 = PCl5
C2H4(g) + O2(g) = CO2(g) + H2O(l) =>
C2H4(g) + 3 O2(g) = 2 CO2(g) + 2 H2O(l)
Na2Cr2O7 + HCl = NaCl + CrCl3 + Cl2 + H2O =>
Na2Cr2O7 + 14 HCl = 2 NaCl + 2 CrCl3 + 3 Cl2 + 7 H2O
CuO + H2O = Cu(OH)2 =>
CuO + H2O = Cu(OH)2
CH3OH + KMNO4 + H2SO4 = HCHO + MNSO4 + K2SO4 + H2O =>
5 CH3OH + 2 KMNO4 + 3 H2SO4 = 5 HCHO + 2 MNSO4 + K2SO4 + 8 H2O
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
H2O + N2O4 = HNO3 + NO =>
2 H2O + 3 N2O4 = 4 HNO3 + 2 NO
Zn + O2 = ZnO =>
2 Zn + O2 = 2 ZnO
Sn + O2 = SnO =>
2 Sn + O2 = 2 SnO
Sn + O2 = SnO2 =>
Sn + O2 = SnO2
Li3N + P3N5 = Li7PN4 =>
7 Li3N + P3N5 = 3 Li7PN4
C5H12(l) + O2(g) = CO2(g) + H2O =>
C5H12(l) + 8 O2(g) = 5 CO2(g) + 6 H2O
HCl + H2O = H3O + Cl =>
HCl + H2O = H3O + Cl
Zn + Cu2{+} = Cu + Zn2{+} =>
2 Zn + Cu2{+} = 2 Cu + Zn2{+}
H2(g) + O2(g) = H2O(g) =>
2 H2(g) + O2(g) = 2 H2O(g)
CaH2 + H2O = Ca(OH)2 + H2 =>
CaH2 + 2 H2O = Ca(OH)2 + 2 H2
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