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2 Na + 2 H2O = 2 NaOH + H2
K2S + H2SO4 = K2SO + H2S =>
4 K2S + H2SO4 = 4 K2SO + H2S
FeCl2(aq) + K2SO4(aq) = FeSO4 + KCl =>
FeCl2(aq) + K2SO4(aq) = FeSO4 + 2 KCl
Li2SO4 + CuCl2 = LiCl + Cu + SO4 =>
Li2SO4 + CuCl2 = 2 LiCl + Cu + SO4
Na2S(aq) + SrCl2(aq) = NaCl(aq) + SrS(s) =>
Na2S(aq) + SrCl2(aq) = 2 NaCl(aq) + SrS(s)
HCl + Ca(OH)2 = CaCl2 + H2O =>
2 HCl + Ca(OH)2 = CaCl2 + 2 H2O
Bi2O3 + HI = BiI3 + H2O =>
Bi2O3 + 6 HI = 2 BiI3 + 3 H2O
Mn2O7 + Ba(OH)2 = Ba(MnO4)2 + H2O =>
Mn2O7 + Ba(OH)2 = Ba(MnO4)2 + H2O
NaCl + CrO2Cl2 + H2SO4 = Cl2 + Cr2(SO4)3 + Na2SO4 + H2O =>
2 NaCl + 2 CrO2Cl2 + 4 H2SO4 = 3 Cl2 + Cr2(SO4)3 + Na2SO4 + 4 H2O
CdS + HBr = CdBr2 + H2S =>
CdS + 2 HBr = CdBr2 + H2S
Cs2O(s) + H2O(l) = CsOH(aq) =>
Cs2O(s) + H2O(l) = 2 CsOH(aq)
(CH2)6N4 + H2O = CH2O + NH4OH =>
(CH2)6N4 + 10 H2O = 6 CH2O + 4 NH4OH
Ca(OH)2 + HF = CaF2 + H2O =>
Ca(OH)2 + 2 HF = CaF2 + 2 H2O
HClO4(aq) + Ba(OH)2(aq) = Ba(ClO4)2(s) + H2O(l) =>
2 HClO4(aq) + Ba(OH)2(aq) = Ba(ClO4)2(s) + 2 H2O(l)
N2 + C + Na2CO3 = NaCN + CO2 =>
2 N2 + 5 C + 2 Na2CO3 = 4 NaCN + 3 CO2
J2 + H2S + H2O = H2SO4 + HJ =>
4 J2 + H2S + 4 H2O = H2SO4 + 8 HJ
MgCl2 + KCl = KCl2 + MgCl =>
MgCl2 + KCl = KCl2 + MgCl
K2SO3 + HBr = SO2 + H2O + KBr =>
K2SO3 + 2 HBr = SO2 + H2O + 2 KBr
Si(s) + N2(g) = Si3N4 =>
3 Si(s) + 2 N2(g) = Si3N4
CH2 = C + H2 =>
CH2 = C + H2
C6H6N2O2 + NaNO2 + HCl = C6H4ClN3O2 + NaCl + H2O =>
C6H6N2O2 + NaNO2 + 2 HCl = C6H4ClN3O2 + NaCl + 2 H2O
Zn(CH2COOH)2 = Zn + CH2COOH =>
Zn(CH2COOH)2 = Zn + 2 CH2COOH
HgS + HNO3 + HCl = HgCl2 + S + NO2 + H2O =>
HgS + 2 HNO3 + 2 HCl = HgCl2 + S + 2 NO2 + 2 H2O
Pb(NO3)2(aq) + NaCH3COO(aq) = Pb(CH3COO)2(aq) + NaNO3(aq) =>
Pb(NO3)2(aq) + 2 NaCH3COO(aq) = Pb(CH3COO)2(aq) + 2 NaNO3(aq)
KBr + CH3COOH + KMnO4 = Br + CH3COOK + (CH3COO)2Mn + H2O =>
5 KBr + 8 CH3COOH + KMnO4 = 5 Br + 6 CH3COOK + (CH3COO)2Mn + 4 H2O
ZnO + H2O = Zn(OH)2 =>
ZnO + H2O = Zn(OH)2
CaC2O4 + KMnO4 = Ca(MnO4)2 + K2C2O4 =>
CaC2O4 + 2 KMnO4 = Ca(MnO4)2 + K2C2O4
CrCl3 + KMnO4 + H2O = MnO2 + Cr(OH)3 + KOH + Cl2 =>
2 CrCl3 + 2 KMnO4 + 4 H2O = 2 MnO2 + 2 Cr(OH)3 + 2 KOH + 3 Cl2
CH3COOH + Sr = Sr(CH3COO)2 + H2 =>
2 CH3COOH + Sr = Sr(CH3COO)2 + H2
Mg(ClO4)2 + HF = MgF + H(ClO4)2 =>
Mg(ClO4)2 + HF = MgF + H(ClO4)2
Ba(NO3)2(aq) + NH4Cl(aq) = BaCl(aq) + NH4(NO3)2(aq) =>
Ba(NO3)2(aq) + NH4Cl(aq) = BaCl(aq) + NH4(NO3)2(aq)
Zn + Pb(CH3COOH)2 = Pb + Zn(CH3COOH)2 =>
Zn + Pb(CH3COOH)2 = Pb + Zn(CH3COOH)2
C8H10N4O2 + O = CO + H2O + NO =>
C8H10N4O2 + 15 O = 8 CO + 5 H2O + 4 NO
FeBr3 + KOH = KBr + Fe(OH)3 =>
FeBr3 + 3 KOH = 3 KBr + Fe(OH)3
KOH + NaHCO3 = KHCO3 + NaOH =>
KOH + NaHCO3 = KHCO3 + NaOH
FeCl2(aq) + K2SO4(aq) = FeSO4 + KCl =>
FeCl2(aq) + K2SO4(aq) = FeSO4 + 2 KCl
KCl + NaI = KI + NaCl =>
KCl + NaI = KI + NaCl
NaOH + CuSO4 = NaSO4 + CuOH =>
NaOH + CuSO4 = NaSO4 + CuOH
KCl + H2SO4 = HCl + K2SO4 =>
2 KCl + H2SO4 = 2 HCl + K2SO4
SrOH2 + H2O = SrO + H3O =>
SrOH2 + 2 H2O = SrO + 2 H3O
Cr2O3 + MgO = Mg(CrO2)2 =>
Cr2O3 + MgO = Mg(CrO2)2
Se + HNO3 + H2O = H2SeO3 + NO =>
3 Se + 4 HNO3 + H2O = 3 H2SeO3 + 4 NO
Cu2(aq) + OH(aq) = Cu(OH)2(s) =>
Cu2(aq) + 4 OH(aq) = 2 Cu(OH)2(s)
Zn3N2 + O2 = ZnO + NO2 =>
2 Zn3N2 + 7 O2 = 6 ZnO + 4 NO2
K2Te = K + Te =>
K2Te = 2 K + Te
HOOC{-}COOH + NaOH = NaOOC{-}COONa + H2O =>
HOOC{-}COOH + NaOH = NaOOC{-}COONa + H2O
Al2O3 + Ag = Ag2O + Al =>
Al2O3 + 6 Ag = 3 Ag2O + 2 Al
Cu + NO3{-} + H2O = Cu{2+} + NO + OH{-} =>
3 Cu + 2 NO3{-} + 4 H2O = 3 Cu{2+} + 2 NO + 8 OH{-}
Fe + CuBr2 = Cu2 + FeBr3 =>
4 Fe + 6 CuBr2 = 3 Cu2 + 4 FeBr3
NCl3 + NaClO2 = ClO2 + NaCl + N2 =>
2 NCl3 + 6 NaClO2 = 6 ClO2 + 6 NaCl + N2
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