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ZnSO4 + (NH4)2S = ZnS + (NH4)2SO4
Cu(s) + AgNO3(l) = Cu(NO3)2(aq) + Ag(s) =>
Cu(s) + 2 AgNO3(l) = Cu(NO3)2(aq) + 2 Ag(s)
K + Ce2 = KCe =>
2 K + Ce2 = 2 KCe
Al(s) + Cu(No3)2(aq) = Al(No3)3(aq) + Cu(s) =>
2 Al(s) + 3 Cu(No3)2(aq) = 2 Al(No3)3(aq) + 3 Cu(s)
H2SO4(l) + NaOH(l) = Na2SO4(aq) + H2O(l) =>
H2SO4(l) + 2 NaOH(l) = Na2SO4(aq) + 2 H2O(l)
Mg(OH)2(s) + H2SO4(aq) = MgSO4(aq) + H2O(l) =>
Mg(OH)2(s) + H2SO4(aq) = MgSO4(aq) + 2 H2O(l)
NiCl2 + K4Fe(CN)6 = NiK4 + Cl2Fe(CN)6 =>
NiCl2 + K4Fe(CN)6 = NiK4 + Cl2Fe(CN)6
O2 + (CH3)2S = (CH3)2SO =>
O2 + 2(CH3)2S = 2(CH3)2SO
NO2 + H2O = HNO3 + N0 =>
5 NO2 + 2 H2O = 4 HNO3 + N0
C5H11Cl + H2O = C5H12O + HCl =>
C5H11Cl + H2O = C5H12O + HCl
Cl{-} + SeO42{-} + H{+} = Cl2 + SeO32{-} + H2O =>
20 Cl{-} + SeO42{-} + 20 H{+} = 10 Cl2 + SeO32{-} + 10 H2O
H2SO4(aq) + Mg(OH)2(s) = H2O(l) + MgSO4(s) =>
H2SO4(aq) + Mg(OH)2(s) = 2 H2O(l) + MgSO4(s)
ZnS + Fe2(SO4)3 = ZnSO4 + FeSO + S =>
5 ZnS + 2 Fe2(SO4)3 = 5 ZnSO4 + 4 FeSO + 2 S
CH3CH2CH2CH2OH + Na = CH3CH2CH2CH2ONa + H2 =>
2 CH3CH2CH2CH2OH + 2 Na = 2 CH3CH2CH2CH2ONa + H2
C3H6O3 + SO4 = CO2 + H2S + H2O =>
5 C3H6O3 + 6 SO4 = 15 CO2 + 6 H2S + 9 H2O
Mn2O4 + H2SO4 = Mn2(SO4)4 + H2O =>
Mn2O4 + 4 H2SO4 = Mn2(SO4)4 + 4 H2O
NaOH(aq) + HClO4(aq) = NaClO4(aq) + H2O(l) =>
NaOH(aq) + HClO4(aq) = NaClO4(aq) + H2O(l)
Ac(OH)3 = Ac2O3 + H2O =>
2 Ac(OH)3 = Ac2O3 + 3 H2O
H2SO4(aq) + Mg(OH)2(s) = H2O + MgSO4 =>
H2SO4(aq) + Mg(OH)2(s) = 2 H2O + MgSO4
K2C2O4 + H2SO4 = CO + K2SO4 + H2O + CO2 =>
K2C2O4 + H2SO4 = CO + K2SO4 + H2O + CO2
Fe2O3 = Fe + O2 =>
2 Fe2O3 = 4 Fe + 3 O2
Si + I2 = SiI4 =>
Si + 2 I2 = SiI4
NH4Cl + Fe(NO3)3 = (NH4)(NO3) + FeCl3 =>
3 NH4Cl + Fe(NO3)3 = 3(NH4)(NO3) + FeCl3
CH3COH + Cu(OH)2 = CH3COOH + Cu2O + H2O =>
CH3COH + 2 Cu(OH)2 = CH3COOH + Cu2O + 2 H2O
Na2S2O3 + I2 = NaI + S2O3 =>
Na2S2O3 + I2 = 2 NaI + S2O3
KCl + H2SO4 = K2SO4 + HCl =>
2 KCl + H2SO4 = K2SO4 + 2 HCl
Fe2O3 + Cu = CuO2 + Fe =>
2 Fe2O3 + 3 Cu = 3 CuO2 + 4 Fe
CH4 + O = CO4 + OH4 =>
CH4 + 5 O = CO4 + OH4
Ag + FeCl2 = AgCl + Fe =>
2 Ag + FeCl2 = 2 AgCl + Fe
CaO + HClO = Ca(HCl)2 + O2 =>
2 CaO + 4 HClO = 2 Ca(HCl)2 + 3 O2
K2(CO3) + H3PO4 = K3(PO4) + H2O + CO2 =>
3 K2(CO3) + 2 H3PO4 = 2 K3(PO4) + 3 H2O + 3 CO2
Fe(NO3)3(aq) + NH4OH(aq) = Fe(OH)3(s) + NH4(NO3)(aq) =>
Fe(NO3)3(aq) + 3 NH4OH(aq) = Fe(OH)3(s) + 3 NH4(NO3)(aq)
NaNO3 + BaCl2 = Ba(NO3)2 + NaCl =>
2 NaNO3 + BaCl2 = Ba(NO3)2 + 2 NaCl
HNO3 = NO2 + H2O + O2 =>
4 HNO3 = 4 NO2 + 2 H2O + O2
BaCl2 + KIO3 = Ba(IO3)2 + KCl =>
BaCl2 + 2 KIO3 = Ba(IO3)2 + 2 KCl
Fe2O3 + Cu = Cu2O3 + Fe =>
Fe2O3 + 2 Cu = Cu2O3 + 2 Fe
FeH2O = FeOH2 =>
FeH2O = FeOH2
NiCl2 + K4Fe(CN)6 = NiK4 + Cl2Fe(CN)6 =>
NiCl2 + K4Fe(CN)6 = NiK4 + Cl2Fe(CN)6
H2SO3 + OH = H2O + SO3 =>
H2SO3 + 2 OH = 2 H2O + SO3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
C3H6O3 + SO4 = CO2 + H2S + H2O =>
5 C3H6O3 + 6 SO4 = 15 CO2 + 6 H2S + 9 H2O
HgS + HNO3 + HCl = HgCl2 + H2O + NO + S =>
3 HgS + 2 HNO3 + 6 HCl = 3 HgCl2 + 4 H2O + 2 NO + 3 S
Li + D2O = LiOD + D2 =>
2 Li + 2 D2O = 2 LiOD + D2
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
Fe2O3 + Cu = Cu2O + Fe =>
Fe2O3 + 6 Cu = 3 Cu2O + 2 Fe
Cu(s) + AgNO3(l) = Cu(NO3)2(l) + Ag(s) =>
Cu(s) + 2 AgNO3(l) = Cu(NO3)2(l) + 2 Ag(s)
AlBr3 + Mg = MgBr2 + Al =>
2 AlBr3 + 3 Mg = 3 MgBr2 + 2 Al
Fe2O3 + Cu = CuO + Fe =>
Fe2O3 + 3 Cu = 3 CuO + 2 Fe
Cu(s) + AgNO3(l) = Cu(NO3)2 + Ag =>
Cu(s) + 2 AgNO3(l) = Cu(NO3)2 + 2 Ag
Li + D2O = Li2O + D2 =>
2 Li + D2O = Li2O + D2
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