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2 HCl + CaCO3� = CaCl2 + H2O + CO2
Mg(s) + HCl(g) = MgCl2 + H =>
Mg(s) + 2 HCl(g) = MgCl2 + 2 H
Al + H2SO4� = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4� = Al2(SO4)3 + 3 H2
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Br{-}(aq) + H{+}(aq) + MnO4{-}(aq) = Br2(l) + Mn{2+}(aq) + H2O(l) =>
10 Br{-}(aq) + 16 H{+}(aq) + 2 MnO4{-}(aq) = 5 Br2(l) + 2 Mn{2+}(aq) + 8 H2O(l)
Na + H2O = NaOH + H =>
Na + H2O = NaOH + H
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
CoBr3 + chlorine = bromine + CoCl3 =>
2 CoBr3 + 3 Cl2 = 3 Br2 + 2 CoCl3
Fe2O4 + H2 = Fe + H2O =>
Fe2O4 + 4 H2 = 2 Fe + 4 H2O
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
Silver + S8 = silversulfide =>
16 Ag + S8 = 8 Ag2S
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Ba3N2 + H2O = Ba(OH)2 + NH3 =>
Ba3N2 + 6 H2O = 3 Ba(OH)2 + 2 NH3
Ammonia + oxygen = nitrogenmonoxide + water =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
CH2Cl2 + Cl2 = CHCl3 + HCl =>
CH2Cl2 + Cl2 = CHCl3 + HCl
HCl + CaCO3�� = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3�� = CaCl2 + H2O + CO2
CuSO4 + HCl = CuCl2 + H2SO4 =>
CuSO4 + 2 HCl = CuCl2 + H2SO4
Na + HNO3 = NaNO3 + NH4 + H2O =>
9 Na + 10 HNO3 = 9 NaNO3 + NH4 + 3 H2O
bariumhydroxide + phosphoricacid = water + Ba3(PO4)2 =>
3 Ba(OH)2 + 2 H3PO4 = 6 H2O + Ba3(PO4)2
CO2 + KOH� = K2CO3 + H2O =>
CO2 + 2 KOH� = K2CO3 + H2O
Aluminum + CuSO4 = Al2(SO4)3 + copper =>
2 Al + 3 CuSO4 = Al2(SO4)3 + 3 Cu
NO + Fe{3+} = NO{3} + Fe{2+} =>
NO + 3 Fe{3+} = NO{3} + 3 Fe{2+}
CuSo4 + Fe = FeSo4 + Cu =>
CuSo4 + Fe = FeSo4 + Cu
CU(OH)2 = CUO + H2O =>
CU(OH)2 = CUO + H2O
IO3{-} + I{-} + H{+} = I2 + H2O =>
IO3{-} + 5 I{-} + 6 H{+} = 3 I2 + 3 H2O
CaSO4 + HBr = HSO4 + CaBr =>
CaSO4 + HBr = HSO4 + CaBr
Mg(OH)2 = Mg + OH =>
Mg(OH)2 = Mg + 2 OH
CO2 + Ca(OH)2 = CaCO3 + H2O =>
CO2 + Ca(OH)2 = CaCO3 + H2O
Cu(s) + HCl(g) = CuCl2 + H =>
Cu(s) + 2 HCl(g) = CuCl2 + 2 H
CH4 + O2� = CO2 + H2O =>
CH4 + 2 O2� = CO2 + 2 H2O
lithiumchlorate = lithiumchloride + oxygen =>
2 LiClO3 = 2 LiCl + 3 O2
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
CH4 + O2 = CO + H2O =>
2 CH4 + 3 O2 = 2 CO + 4 H2O
Al + Cl2 = AlCl3 =>
2 Al + 3 Cl2 = 2 AlCl3
Fe(s) + HCl(aq) = FeCl3(aq) + H2(g) =>
2 Fe(s) + 6 HCl(aq) = 2 FeCl3(aq) + 3 H2(g)
C6H6 + oxygen = carbondioxide + water =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
Be2C + H2O� = Be(OH)2 + CH4 =>
Be2C + 4 H2O� = 2 Be(OH)2 + CH4
HC2H3O2 + KOH = KC2H3O2 + H2O =>
HC2H3O2 + KOH = KC2H3O2 + H2O
MnO2 + H2 = Mn + H2O =>
MnO2 + 2 H2 = Mn + 2 H2O
Cu + HNO3� = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3� = 3 Cu(NO3)2 + 2 NO + 4 H2O
C7H16 + O2 = CO2 + H20 =>
5 C7H16 + 35 O2 = 35 CO2 + 4 H20
C6H8O6 + I2 = C6H6O6 + I{-} + H{+} =>
C6H8O6 + I2 = C6H6O6 + 2 I{-} + 2 H{+}
Silicondioxide + HF = SiF4 + water =>
SiO2 + 4 HF = SiF4 + 2 H2O
C7H16 + O2 = CO2 + H20 =>
5 C7H16 + 35 O2 = 35 CO2 + 4 H20
NH3 + CuO� = Cu + N2 + H2O =>
2 NH3 + 3 CuO� = 3 Cu + N2 + 3 H2O
Pb(No3)2 + K2Cro4 = PbCro4 + KNo3 =>
Pb(No3)2 + K2Cro4 = PbCro4 + 2 KNo3
Cu(NO3)2 + K2Cr2O7 = CuCr2O7 + KNO3 =>
Cu(NO3)2 + K2Cr2O7 = CuCr2O7 + 2 KNO3
C6H8O6 + I2 = C6H6O6 + I{-} + H{+} =>
C6H8O6 + I2 = C6H6O6 + 2 I{-} + 2 H{+}
C3H8 + H2O = CO + H2 =>
C3H8 + 3 H2O = 3 CO + 7 H2
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