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Cu2S + 2 Cu2O = 6 Cu + SO2
Fe + H2O = Fe3O4 + H2 =>
3 Fe + 4 H2O = Fe3O4 + 4 H2
CH3CH2OH + KMnO4 + H2SO4 = CH3COH + MnSO4 + H2O + K2SO4 =>
5 CH3CH2OH + 2 KMnO4 + 3 H2SO4 = 5 CH3COH + 2 MnSO4 + 8 H2O + K2SO4
carbon + oxygen = carbondioxide =>
C + O2 = CO2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
K3PO4 + MgCl2 = Mg3(PO4)2 + KCl =>
2 K3PO4 + 3 MgCl2 = Mg3(PO4)2 + 6 KCl
Fe(k) + HCl(konc) = FeCl3(aq) + H2(g) =>
2 Fe(k) + 6 HCl(konc) = 2 FeCl3(aq) + 3 H2(g)
Fe3(PO4)2 = Fe + PO4 =>
Fe3(PO4)2 = 3 Fe + 2 PO4
Al + S = Al2S3 =>
2 Al + 3 S = Al2S3
S + HNO3 = H2SO4 + NO2 + H20 =>
10 S + 40 HNO3 = 10 H2SO4 + 40 NO2 + H20
Fe(Cro2)2 + O2 + K2CO3 = Fe2O3 + K2Cro4 + CO2 =>
4 Fe(Cro2)2 + O2 + 4 K2CO3 = 2 Fe2O3 + 4 K2Cro4 + 4 CO2
S + HNO3 = H2SO4 + NO2 + H2O =>
S + 6 HNO3 = H2SO4 + 6 NO2 + 2 H2O
Fe2O3 + H2SO4 = Fe2(SO4)3 + H2O =>
Fe2O3 + 3 H2SO4 = Fe2(SO4)3 + 3 H2O
Mg + P = Mg3P2 =>
3 Mg + 2 P = Mg3P2
WC + O2 = WO3 + CO2 =>
2 WC + 5 O2 = 2 WO3 + 2 CO2
Fe3(PO4)2 = Fe + PO4 =>
Fe3(PO4)2 = 3 Fe + 2 PO4
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
Cu2SO4 + Zn = Zn2SO4 + Cu =>
Cu2SO4 + 2 Zn = Zn2SO4 + 2 Cu
HCl + Fe(OH)3 = FeCl3 + H2O =>
3 HCl + Fe(OH)3 = FeCl3 + 3 H2O
Ca + Cl2 = CaCl2 =>
Ca + Cl2 = CaCl2
CaC2 + H2O = Ca(OH)2 + C2H2 =>
CaC2 + 2 H2O = Ca(OH)2 + C2H2
NH2OH + K2Cr2O7 + H2SO4 = N2 + Cr2(SO4)3 + K2SO4 + H2O =>
6 NH2OH + K2Cr2O7 + 4 H2SO4 = 3 N2 + Cr2(SO4)3 + K2SO4 + 13 H2O
KNO2 + HNO3 = KNO3 + HNO2 =>
KNO2 + HNO3 = KNO3 + HNO2
Mg(s) + HCl(aq) = MgCl2(aq) + H2(g) =>
Mg(s) + 2 HCl(aq) = MgCl2(aq) + H2(g)
phosphorus + chlorine = phosphorustrichloride =>
2 P + 3 Cl2 = 2 PCl3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Mg2 + Br2 = MgBr2 =>
Mg2 + 2 Br2 = 2 MgBr2
Cu2SO4 + Zn = Zn2SO4 + Cu =>
Cu2SO4 + 2 Zn = Zn2SO4 + 2 Cu
C2H2 + H2O = CH3CHO =>
C2H2 + H2O = CH3CHO
KNO2 + HNO3 = KNO3 + HNO2 =>
KNO2 + HNO3 = KNO3 + HNO2
Fe2O3 + H2CO3 = Fe2(CO3)3 + H2O =>
Fe2O3 + 3 H2CO3 = Fe2(CO3)3 + 3 H2O
C + O2 = CO =>
2 C + O2 = 2 CO
VO + Fe2O3 = V2O5 + FeO =>
2 VO + 3 Fe2O3 = V2O5 + 6 FeO
C + O2 = CO2 =>
C + O2 = CO2
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
H2S + Fe2O3 = FeS + S + H2O =>
3 H2S + Fe2O3 = 2 FeS + S + 3 H2O
CH3CHO + Ag2O = Ag + CH3COOH =>
CH3CHO + Ag2O = 2 Ag + CH3COOH
KBr + Cl2 = KCl + Br2 =>
2 KBr + Cl2 = 2 KCl + Br2
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
CO + Fe2O3 = Fe + CO2 =>
3 CO + Fe2O3 = 2 Fe + 3 CO2
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
(COOH)2 + KOH = K2C2O4 + H2O =>
(COOH)2 + 2 KOH = K2C2O4 + 2 H2O
Al4C3 + H2O = Al(OH)3 + CH4 =>
Al4C3 + 12 H2O = 4 Al(OH)3 + 3 CH4
CH3COOH + CH3OH = CH3COOCH3 + H2O =>
CH3COOH + CH3OH = CH3COOCH3 + H2O
CF4 + Br2 = CBr4 + F2 =>
CF4 + 2 Br2 = CBr4 + 2 F2
Ca(OH)2 + CO2 = CaCO3 + H2O =>
Ca(OH)2 + CO2 = CaCO3 + H2O
NaIO3 + KI + H2SO4 = I2 + Na2SO4 + K2SO4 + H2O =>
2 NaIO3 + 10 KI + 6 H2SO4 = 6 I2 + Na2SO4 + 5 K2SO4 + 6 H2O
C6H4(NH2)COOH + NaOH = C6H4(NH2)COONa + H2O =>
C6H4(NH2)COOH + NaOH = C6H4(NH2)COONa + H2O
HCl + CuO = CuCl2 + H2O =>
2 HCl + CuO = CuCl2 + H2O
Ba(OH)2 + H2SO4 = BaSO4 + H2O =>
Ba(OH)2 + H2SO4 = BaSO4 + 2 H2O
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