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2 Mg + Cu = Mg2Cu
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
S + F2 = S(F)6 =>
S + 3 F2 = S(F)6
HNO3(aq) + NaOH = NaNO3(aq) + H2O(l) =>
HNO3(aq) + NaOH = NaNO3(aq) + H2O(l)
CH2O = (CH2O)12 =>
12 CH2O = (CH2O)12
MgO4 = Mg + O2 =>
MgO4 = Mg + 2 O2
Ca3(PO4)2 + H3PO4 = Ca(H2PO4)2 =>
Ca3(PO4)2 + 4 H3PO4 = 3 Ca(H2PO4)2
WSe2 + WNi = W + NiSe =>
WSe2 + 2 WNi = 3 W + 2 NiSe
C2H5COOH + CaCO3 = C2H5COOCa + H2O + CO2 =>
15 C2H5COOH + 14 CaCO3 = 14 C2H5COOCa + 10 H2O + 17 CO2
Cu(NO3)2 + NH4NO3 = CuNO3 + NH4(NO3)2 =>
Cu(NO3)2 + NH4NO3 = CuNO3 + NH4(NO3)2
Mg + SO3 = MgO + S =>
3 Mg + SO3 = 3 MgO + S
CoBr2 + NaC2H3O2 = Co(C2H3O2)2 + NaBr =>
CoBr2 + 2 NaC2H3O2 = Co(C2H3O2)2 + 2 NaBr
Li + H2O = HLiOH(ac) =>
Li + H2O = HLiOH(ac)
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
K3[Cr(OH)6] + H2SO4 = K2SO4 + Cr2(SO4)3 + H2O =>
2 K3[Cr(OH)6] + 6 H2SO4 = 3 K2SO4 + Cr2(SO4)3 + 12 H2O
NH3 + CuO2 = Cu + H2O + N2 =>
4 NH3 + 3 CuO2 = 3 Cu + 6 H2O + 2 N2
Cl2 + S + KOH = K2SO4 + KCl + H2O =>
3 Cl2 + S + 8 KOH = K2SO4 + 6 KCl + 4 H2O
H2O2 + KCr(OH)4 + KOH = K2CrO4 + H2O =>
3 H2O2 + 2 KCr(OH)4 + 2 KOH = 2 K2CrO4 + 8 H2O
PbO + SiO2 = PbSiO3 =>
PbO + SiO2 = PbSiO3
CH3C6H4SO3H + NaOH = CH3C6H4OH + Na2SO3 + H2O =>
CH3C6H4SO3H + 2 NaOH = CH3C6H4OH + Na2SO3 + H2O
C2H4(g) + H2(g) = C2H6(g) =>
C2H4(g) + H2(g) = C2H6(g)
Na2CO3 + Ca(OH)2 = NaOH + CaCO3 =>
Na2CO3 + Ca(OH)2 = 2 NaOH + CaCO3
Pb(NO3)2(ac) + KI = KNO3(ac) + PbI2(s) =>
Pb(NO3)2(ac) + 2 KI = 2 KNO3(ac) + PbI2(s)
ZnO + H2O = Zn(OH)2 =>
ZnO + H2O = Zn(OH)2
CH3CHO + I2 + NaOH = CH3COOH + NaI + H2O =>
CH3CHO + I2 + 2 NaOH = CH3COOH + 2 NaI + H2O
NH3 + O2 = NO2 + H2O =>
4 NH3 + 7 O2 = 4 NO2 + 6 H2O
MnSO4 + Br2 + KOH = KMnO4 + K2SO4 + KBr + H2O =>
2 MnSO4 + 5 Br2 + 16 KOH = 2 KMnO4 + 2 K2SO4 + 10 KBr + 8 H2O
K3(PO4) + Na = Na3PO4 + K =>
K3(PO4) + 3 Na = Na3PO4 + 3 K
H2SO4 + Ca3(PO4)2 = (CaSO4) + H3PO4 =>
3 H2SO4 + Ca3(PO4)2 = 3(CaSO4) + 2 H3PO4
C2H4O2 + NaHCO3 = NaC2H3O2 + CO2 + H12O =>
19 C2H4O2 + 14 NaHCO3 = 14 NaC2H3O2 + 24 CO2 + 4 H12O
Mg(OH)2 + H2SO4 = H2O + MgSO4 =>
Mg(OH)2 + H2SO4 = 2 H2O + MgSO4
Ca(HCO3)2 + CH3COOH = CaCH3COO + H2O + CO2 =>
8 Ca(HCO3)2 + 9 CH3COOH = 8 CaCH3COO + 14 H2O + 18 CO2
PbL3 = Pb + L2 =>
2 PbL3 = 2 Pb + 3 L2
C + NaOH + H2O = Na2CO3 + H2(g) =>
C + 2 NaOH + H2O = Na2CO3 + 2 H2(g)
(NH4)2CO3 + LiOH = (NH4)OH + Li2CO3 =>
(NH4)2CO3 + 2 LiOH = 2(NH4)OH + Li2CO3
Sn(OH)4{-2} + ClO3{-} + H2O = Sn(OH)6{-2} + Cl{-} =>
3 Sn(OH)4{-2} + ClO3{-} + 3 H2O = 3 Sn(OH)6{-2} + Cl{-}
CH3COONa(aq)HCl(aq) = CH3COOH(aq)NaCl(aq) =>
CH3COONa(aq)HCl(aq) = CH3COOH(aq)NaCl(aq)
Na2SO4 + MgO = Na2O + MgSO4 =>
Na2SO4 + MgO = Na2O + MgSO4
C3H4O + H2 = C3H6O =>
C3H4O + H2 = C3H6O
H2 + NO = H2O + N2 =>
2 H2 + 2 NO = 2 H2O + N2
H2SO4 + ZnCl2 = ZnSO4 + H2Cl2 =>
H2SO4 + ZnCl2 = ZnSO4 + H2Cl2
Fe + Cu3N = Fe3N2 + Cu =>
3 Fe + 2 Cu3N = Fe3N2 + 6 Cu
KO2 + CO4 = K3C5O + O3 =>
9 KO2 + 15 CO4 = 3 K3C5O + 25 O3
He + Ne = HeNe =>
He + Ne = HeNe
CaO + HNO3 = Ca(NO3)2 + H2O =>
CaO + 2 HNO3 = Ca(NO3)2 + H2O
Cu + NH3 + O2 + H2O = Cu(NH3)4(OH)2 =>
2 Cu + 8 NH3 + O2 + 2 H2O = 2 Cu(NH3)4(OH)2
Ba(OH)2 + H3PO3 = Ba(H2PO3)2 + H2O =>
Ba(OH)2 + 2 H3PO3 = Ba(H2PO3)2 + 2 H2O
FeCl2 + NaOH = Fe(OH)2 + NaCl =>
FeCl2 + 2 NaOH = Fe(OH)2 + 2 NaCl
NaHS = Na + HS =>
NaHS = Na + HS
F + H2 = FH =>
2 F + H2 = 2 FH
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