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S + CO2 = SO2 + C
Mg + Cl2 = MgCl2 =>
Mg + Cl2 = MgCl2
NH + O = NO + H2O =>
2 NH + 3 O = 2 NO + H2O
K2HAsO3 + KBrO3 + HCl = KCl + KBr + H3AsO4 =>
3 K2HAsO3 + KBrO3 + 6 HCl = 6 KCl + KBr + 3 H3AsO4
RbF + CuSO4 = RbCu2 + F(SO4)2 =>
RbF + 2 CuSO4 = RbCu2 + F(SO4)2
Sr(NO3)2(aq) + CuSO4(aq) = SrSO4 + Cu(NO3)2 =>
Sr(NO3)2(aq) + CuSO4(aq) = SrSO4 + Cu(NO3)2
H2S(g) + O2(g) = SO4(g) + H2O(g) =>
2 H2S(g) + 5 O2(g) = 2 SO4(g) + 2 H2O(g)
MoO3 = O2 + Mo =>
2 MoO3 = 3 O2 + 2 Mo
SnH4 + NaOH + H2O = Na2SnO3 + H2 =>
SnH4 + 2 NaOH + H2O = Na2SnO3 + 4 H2
X2 = X =>
X2 = 2 X
CuSO4 + C = CuS + CO2 =>
CuSO4 + 2 C = CuS + 2 CO2
C2H2(g) + CO2(g) + H2O(g) = CH2CHCO2H(g) =>
6 C2H2(g) + 3 CO2(g) + 4 H2O(g) = 5 CH2CHCO2H(g)
NaOH + H2SO4 = H2O + SO4Na2 =>
2 NaOH + H2SO4 = 2 H2O + SO4Na2
CO2 + K = K2CO3 + C =>
3 CO2 + 4 K = 2 K2CO3 + C
C4H10O + K2Cr2O7 = C4H9O + KCr + H2O =>
14 C4H10O + K2Cr2O7 = 14 C4H9O + 2 KCr + 7 H2O
Na2O + H2 = H2O + Na =>
Na2O + H2 = H2O + 2 Na
C3H10N2 + O2 = CO2 + H2O + NO2 =>
2 C3H10N2 + 15 O2 = 6 CO2 + 10 H2O + 4 NO2
N + Fe = N2Fe =>
2 N + Fe = N2Fe
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
CrCl3 + Ba(OH)2 = Cr(OH)3 + BaCl2 =>
2 CrCl3 + 3 Ba(OH)2 = 2 Cr(OH)3 + 3 BaCl2
(b)C2H4(g) + O2(g) = CO2(g) + H2O(g) =>
(b)C2H4(g) + 3 O2(g) = 2 CO2(g) + 2 H2O(g)
KOH + Cl2 = KCl + H2O + KClO3 =>
6 KOH + 3 Cl2 = 5 KCl + 3 H2O + KClO3
NH4OH + HgCl2 = NH4Cl + Hg(OH)2 =>
2 NH4OH + HgCl2 = 2 NH4Cl + Hg(OH)2
FeSO4 + KMnO4 + H2SO4 = Fe2(SO4)3 + MnSO4 + K2SO4 + H2O =>
10 FeSO4 + 2 KMnO4 + 8 H2SO4 = 5 Fe2(SO4)3 + 2 MnSO4 + K2SO4 + 8 H2O
C6H6NH2 + Br2 = C6H6NH2Br =>
2 C6H6NH2 + Br2 = 2 C6H6NH2Br
Al + Ag2CO3 = Ag + Al2(CO3)3 =>
2 Al + 3 Ag2CO3 = 6 Ag + Al2(CO3)3
C4H10(g) + O2(g) = CO2(g) + H2O2(g) =>
C4H10(g) + 9 O2(g) = 4 CO2(g) + 5 H2O2(g)
Na2SiO3 + H2SO4 = H2SiO3 + Na2SO4 =>
Na2SiO3 + H2SO4 = H2SiO3 + Na2SO4
(NH4)2S + O2 = NH3 + SO2 + H2O =>
2(NH4)2S + 3 O2 = 4 NH3 + 2 SO2 + 2 H2O
CO(g) + NO(g) = N2(g) + CO2(g) =>
2 CO(g) + 2 NO(g) = N2(g) + 2 CO2(g)
CH3CH2OH + CrO72{-} + H{+} = CH3CHO + Cr3{+} + H2O =>
214 CH3CH2OH + 3 CrO72{-} + 4 H{+} = 214 CH3CHO + Cr3{+} + 216 H2O
MgS + Be3N2 = Mg3N2 + BeS =>
3 MgS + Be3N2 = Mg3N2 + 3 BeS
Ag + HNO3 + HCl = AgCl + NO + H2O =>
3 Ag + HNO3 + 3 HCl = 3 AgCl + NO + 2 H2O
TiO2(s) + Cl2(g) + C(s) = TiCl4(s) + CO(g) =>
TiO2(s) + 2 Cl2(g) + 2 C(s) = TiCl4(s) + 2 CO(g)
Au + H2SO4 = Au2S3O12 + H2 =>
2 Au + 3 H2SO4 = Au2S3O12 + 3 H2
Fe + H2SO4 = Fe2(SO4)3 + SO2 + H2H2O =>
2 Fe + 4 H2SO4 = Fe2(SO4)3 + SO2 + 2 H2H2O
C9H7N + H2O = OH + HC9H7N =>
C9H7N + H2O = OH + HC9H7N
HI + SO2 = H2S + I2 + H2O =>
6 HI + SO2 = H2S + 3 I2 + 2 H2O
Ba + (NO3) = Ba(NO3)2 =>
Ba + 2(NO3) = Ba(NO3)2
Ca + C2 = CaC2 =>
Ca + C2 = CaC2
Al2O3 + Fe2 = Fe3O4 + Al =>
8 Al2O3 + 9 Fe2 = 6 Fe3O4 + 16 Al
Na2O + HClO3 = H2O + NaClO3 =>
Na2O + 2 HClO3 = H2O + 2 NaClO3
C2H5OH(l) + O2(g) = CO2(g) + H2 = (g) =>
2 C2H5OH(l) + 3 O2(g) = 4 CO2(g) + 6 H2
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
Zn(NO3)2 + Na2S = Zn2S2 + NaNO3 =>
2 Zn(NO3)2 + 2 Na2S = Zn2S2 + 4 NaNO3
C6H5Br + CH3Cl = C7H8 + BrCl =>
C6H5Br + CH3Cl = C7H8 + BrCl
(NH4)2S + KCN = NH4CN + K2S =>
(NH4)2S + 2 KCN = 2 NH4CN + K2S
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
Pb + Al2(SO4)3 = Pb(SO4) + Al =>
3 Pb + Al2(SO4)3 = 3 Pb(SO4) + 2 Al
C6H5CHO + Cr2O7{-2} + H{+} = C6H5COOH + Cr{3+} + H2O =>
3 C6H5CHO + Cr2O7{-2} + 8 H{+} = 3 C6H5COOH + 2 Cr{3+} + 4 H2O
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