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4 Ca + 2 H{-} = 2 Ca2{-} + H2
H2(SO4) + Ca(OH)2 = Ca(SO4) + H(OH) =>
H2(SO4) + Ca(OH)2 = Ca(SO4) + 2 H(OH)
SO2 + HNO3 + H2O = H2SO4 + NO =>
3 SO2 + 2 HNO3 + 2 H2O = 3 H2SO4 + 2 NO
Ca + N2 = CaN =>
2 Ca + N2 = 2 CaN
Cr2O3 + H2 = Cr + H2O =>
Cr2O3 + 3 H2 = 2 Cr + 3 H2O
SeO2 + H2O = H2SeO3 =>
SeO2 + H2O = H2SeO3
Zn(OH)2 + HCl = ZnCl2 + H2O =>
Zn(OH)2 + 2 HCl = ZnCl2 + 2 H2O
CH3CH2CH2CH2OH + Na = CH3CH2CH2CH2ONa + H2 =>
2 CH3CH2CH2CH2OH + 2 Na = 2 CH3CH2CH2CH2ONa + H2
MnO4{-} + S2{-2} + H2O = MnO2 + S + OH{-} =>
2 MnO4{-} + 3 S2{-2} + 4 H2O = 2 MnO2 + 6 S + 8 OH{-}
NaHCO3 + CH3COOH = CH3COONa + H2 + CO2 =>
2 NaHCO3 + 3 CH3COOH = 2 CH3COONa + 4 H2 + 4 CO2
CH3CH2N(CH3)2 + HONO2 = CH3CH2NH(CH3)2 + NO3 =>
CH3CH2N(CH3)2 + HONO2 = CH3CH2NH(CH3)2 + NO3
Pb(SO3)2 + H2SO4 = PbSO4 + HSO3 =>
Pb(SO3)2 + H2SO4 = PbSO4 + 2 HSO3
Mo7O24{-6} + BH4{-} + H{+} = Mo + H3BO3 + H2 =>
Mo7O24{-6} + 8 BH4{-} + 14 H{+} = 7 Mo + 8 H3BO3 + 11 H2
Ta + I = TaI5 =>
Ta + 5 I = TaI5
C3H6 + KMnO4 + H2O = C3H7(OH)3 + MnO2 + KOH =>
3 C3H6 + 2 KMnO4 + 7 H2O = 3 C3H7(OH)3 + 2 MnO2 + 2 KOH
SnOH + O2 = SnO + H2O =>
4 SnOH + O2 = 4 SnO + 2 H2O
OCl{-} + S2O3{2-} + H{+} = S4O6{2-} + Cl{-} + H2O =>
OCl{-} + 2 S2O3{2-} + 2 H{+} = S4O6{2-} + Cl{-} + H2O
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
W + In3Se7 = In + WSe2 =>
7 W + 2 In3Se7 = 6 In + 7 WSe2
In(OH)3 + H3PO4 = InPO4 + H2O =>
In(OH)3 + H3PO4 = InPO4 + 3 H2O
sulfurousacid = water + sulfurdioxide =>
H2SO3 = H2O + SO2
KCl + H2O + NH3 = KOH + NH4Cl =>
KCl + H2O + NH3 = KOH + NH4Cl
Au(OH)3 + CN{-} + H{+} + e = Au(CN)2{-} + H2O =>
Au(OH)3 + 2 CN{-} + 3 H{+} + 2e = Au(CN)2{-} + 3 H2O
O2 + HN3 = H2O + NO =>
7 O2 + 4 HN3 = 2 H2O + 12 NO
K2HPO4 + HCl{-} = K + H3PO4 + Cl{-} =>
K2HPO4 + 2 HCl{-} = 2 K + H3PO4 + 2 Cl{-}
RCH2OH + MnO4{-} = RCHO + MnO2 + H2O + OH{-} =>
3 RCH2OH + 2 MnO4{-} = 3 RCHO + 2 MnO2 + 2 H2O + 2 OH{-}
Fe2(CO3)3 = Fe2O3 + (CO2) =>
Fe2(CO3)3 = Fe2O3 + 3(CO2)
CUSO4 + NI = NISO4 + CU =>
CUSO4 + NI = NISO4 + CU
KNO3 + Fe(OH)2 = Fe(NO3)2 + KOH =>
2 KNO3 + Fe(OH)2 = Fe(NO3)2 + 2 KOH
NH4OH + NaOH = NH4Na + H2O2 =>
NH4OH + NaOH = NH4Na + H2O2
CuCl2 + Ba(NO3)2 = CuBa + Cl(NO3) =>
CuCl2 + Ba(NO3)2 = CuBa + 2 Cl(NO3)
KNO2 + KI + H2SO4 = I2 + NO + K2SO4 + H2O =>
2 KNO2 + 2 KI + 2 H2SO4 = I2 + 2 NO + 2 K2SO4 + 2 H2O
Cr(OH)2 + H2O + O2 = Cr(OH)3 =>
4 Cr(OH)2 + 2 H2O + O2 = 4 Cr(OH)3
CuSO4 + NaOH = CuSO4NaOH =>
CuSO4 + NaOH = CuSO4NaOH
Ba(NO3) + (NH4)2(CO3) = Ba2(CO3) + (NH4)(NO3) =>
2 Ba(NO3) + (NH4)2(CO3) = Ba2(CO3) + 2(NH4)(NO3)
HCOOK + H2SO4 = KHSO4 + HCOOH =>
HCOOK + H2SO4 = KHSO4 + HCOOH
Ca2 + (OH)2 + CO2 = CaCO3 + H2O =>
Ca2 + 2(OH)2 + 2 CO2 = 2 CaCO3 + 2 H2O
MnO4 + SnO2{2-} = MnO2 + SnO3{2-} =>
MnO4 + 2 SnO2{2-} = MnO2 + 2 SnO3{2-}
Fe3[Fe(CN)6]2 + NaOH = Fe(OH)3 + Na4[Fe(CN)6] + Fe(OH)2 =>
Fe3[Fe(CN)6]2 + 8 NaOH = 2 Fe(OH)3 + 2 Na4[Fe(CN)6] + Fe(OH)2
P + O2 = PO2 =>
P + O2 = PO2
NaOH + HI = H2O + NaI =>
NaOH + HI = H2O + NaI
KNO3(s) + S8(s) + C(s) = N2(g) + CO2(g) + K2S(s) =>
16 KNO3(s) + S8(s) + 24 C(s) = 8 N2(g) + 24 CO2(g) + 8 K2S(s)
H2CO3(aq) + NH3(aq) = (NH4)2CO3(aq) =>
H2CO3(aq) + 2 NH3(aq) = (NH4)2CO3(aq)
Li2S(aq) + HBr(aq) = H2S(g) + LiBr(aq) =>
Li2S(aq) + 2 HBr(aq) = H2S(g) + 2 LiBr(aq)
CH3NH2(g) + O2(g) = CO2(g) + H2(g) + N2(g) =>
2 CH3NH2(g) + 2 O2(g) = 2 CO2(g) + 5 H2(g) + N2(g)
Mg5 + AgNO3 = Ag + Mg(NO3)2 =>
Mg5 + 10 AgNO3 = 10 Ag + 5 Mg(NO3)2
C4H10 + Cl2 = H2 + CCl4 =>
C4H10 + 8 Cl2 = 5 H2 + 4 CCl4
KMnO4 + FeSO4 + NaOH = K2MnO4 + Na2MnO4 + Fe(OH)3 + Na2SO4 =>
2 KMnO4 + 2 FeSO4 + 6 NaOH = K2MnO4 + Na2MnO4 + 2 Fe(OH)3 + 2 Na2SO4
Al(OH)3 + HCl = AlCl3 + H2O =>
Al(OH)3 + 3 HCl = AlCl3 + 3 H2O
CuSO4 + (NH4)2S = CuS + (NH4)2SO4 =>
CuSO4 + (NH4)2S = CuS + (NH4)2SO4
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