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CaCO3 = CaO + CO2
CaO(s) + HCl(l) = CaCl2(s) + H2O(l) =>
CaO(s) + 2 HCl(l) = CaCl2(s) + H2O(l)
AsH3 + H2O = H3AsO4 + H =>
AsH3 + 4 H2O = H3AsO4 + 8 H
C20H22O3 + O2 = CO2 + H2O =>
C20H22O3 + 24 O2 = 20 CO2 + 11 H2O
Mg(NO3)2 + H3PO4 = Mg3(PO4)2 + HNO3 =>
3 Mg(NO3)2 + 2 H3PO4 = Mg3(PO4)2 + 6 HNO3
KHCO3 + H2SO4 = CO2 + H2O + K2SO4 =>
2 KHCO3 + H2SO4 = 2 CO2 + 2 H2O + K2SO4
HCN + CuSO4 = H2SO4 + Cu(CN)2 =>
2 HCN + CuSO4 = H2SO4 + Cu(CN)2
Li + Sn(CN)4 = Li(CN) + Sn4 =>
16 Li + 4 Sn(CN)4 = 16 Li(CN) + Sn4
K2S + ZnCl2 = KCl + ZnS =>
K2S + ZnCl2 = 2 KCl + ZnS
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Be2C + H2O = Be + CO + H2 =>
Be2C + H2O = 2 Be + CO + H2
As4 + NaClO + NaOH = Na3AsO4 + NaCl + H2O =>
As4 + 10 NaClO + 12 NaOH = 4 Na3AsO4 + 10 NaCl + 6 H2O
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
NO2 + H2O = HNO3 + NO =>
3 NO2 + H2O = 2 HNO3 + NO
H2O + FeSO4 + Na2Cr2O7 + NaOH = Na2SO4 + Cr2O3 + Fe(OH)3 =>
4 H2O + 6 FeSO4 + Na2Cr2O7 + 10 NaOH = 6 Na2SO4 + Cr2O3 + 6 Fe(OH)3
K2CO3(s) = K2O(g) + CO2 =>
K2CO3(s) = K2O(g) + CO2
Cr{2+} + H2MoO4 + H{+} = Cr{3+} + Mo + H2O =>
6 Cr{2+} + H2MoO4 + 6 H{+} = 6 Cr{3+} + Mo + 4 H2O
Se + H2O = SeO2 + H2Se =>
3 Se + 2 H2O = SeO2 + 2 H2Se
BaS + H2SO4 = BaSO4 + H2S =>
BaS + H2SO4 = BaSO4 + H2S
CH3NH2 + H2O = CH3NH4 + O2 =>
2 CH3NH2 + 2 H2O = 2 CH3NH4 + O2
FeI2 + HCl = FeH + I2Cl =>
FeI2 + HCl = FeH + I2Cl
HClO4 + KHCO3 = KClO4 + CO2 + H2O =>
HClO4 + KHCO3 = KClO4 + CO2 + H2O
Al(NO3)3 + NH4OH = AlOH + NH4(NO3)3 =>
Al(NO3)3 + NH4OH = AlOH + NH4(NO3)3
Cr + H2S = CrS + H2 =>
Cr + H2S = CrS + H2
KMnO4 + C3H8O3 = CO2 + H2O + K2CO3 + Mn2O3 =>
14 KMnO4 + 4 C3H8O3 = 5 CO2 + 16 H2O + 7 K2CO3 + 7 Mn2O3
NiCl2 + SrI2 = NiI2 + SrCl2 =>
NiCl2 + SrI2 = NiI2 + SrCl2
K3PO4(ac) + BaCl2(ac) = Ba3(PO4)2(s) + KCl(ac) =>
2 K3PO4(ac) + 3 BaCl2(ac) = Ba3(PO4)2(s) + 6 KCl(ac)
P4 + O2 = P2O3 =>
P4 + 3 O2 = 2 P2O3
KHSO4 + HBr = K2SO4 + SO2 + Br2 + H2O =>
2 KHSO4 + 2 HBr = K2SO4 + SO2 + Br2 + 2 H2O
Ba(CH3COO)2 + Na2SO4 = BaSO4 + Na(CH3COO) =>
Ba(CH3COO)2 + Na2SO4 = BaSO4 + 2 Na(CH3COO)
S8 + O2 = SO3 =>
S8 + 12 O2 = 8 SO3
Sn(NO3)2 + NaOH + Hg(NO3)2 = Hg + Na2SnO3 + H2O + NaNO3 =>
Sn(NO3)2 + 6 NaOH + Hg(NO3)2 = Hg + Na2SnO3 + 3 H2O + 4 NaNO3
Na2Co3(ac) + CaCl2(ac) = NaCl + CaCo3 =>
Na2Co3(ac) + CaCl2(ac) = 2 NaCl + CaCo3
KMnO4 + OH = MnO4 + H2O + KO2 =>
KMnO4 + 4 OH = MnO4 + 2 H2O + KO2
HMgO + NH4PO4 = MgPO4 + NH3 + H2O =>
HMgO + NH4PO4 = MgPO4 + NH3 + H2O
HNO3 + C5H5N = HC5H5N + NO3 =>
HNO3 + C5H5N = HC5H5N + NO3
氢氧化钙 + 二氧化碳 = 碳酸钙 + 水 =>
Ca(OH)2 + CO2 = CaCO3 + H2O
硫 + 臭氧 = 二氧化硫 =>
3 S + 2 O3 = 3 SO2
NaOH2 + H2O = NaOH + H3O =>
NaOH2 + H2O = NaOH + H3O
(NH4)2SO4(aq) + CuCl2(aq) = (NH4)Cl(aq) + CuSO4(s) =>
(NH4)2SO4(aq) + CuCl2(aq) = 2(NH4)Cl(aq) + CuSO4(s)
Cu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
Cu + 4 HNO3 = Cu(NO3)2 + 2 NO2 + 2 H2O
Ag(s) + HNO3 = AgNO3(aq) + H2(g) =>
2 Ag(s) + 2 HNO3 = 2 AgNO3(aq) + H2(g)
RbI + Pb(NO3)2 = RbNO3 + PbI2 =>
2 RbI + Pb(NO3)2 = 2 RbNO3 + PbI2
RbNO3 + BeF2 = Be(NO3)2 + RbF =>
2 RbNO3 + BeF2 = Be(NO3)2 + 2 RbF
Ni2(SO3)3 + H2SO4 = Ni2(SO4)3 + H2SO3 =>
Ni2(SO3)3 + 3 H2SO4 = Ni2(SO4)3 + 3 H2SO3
KMnO4 + NaOH = O2 + K2MnO4 + Na2MnO4 + H2O =>
4 KMnO4 + 4 NaOH = O2 + 2 K2MnO4 + 2 Na2MnO4 + 2 H2O
SO2 + NaOH = NaHSO3 =>
SO2 + NaOH = NaHSO3
CrCl3 + Na2O = Cr2O3 + NaCl =>
2 CrCl3 + 3 Na2O = Cr2O3 + 6 NaCl
NaBr + AgN = Na3N + AgBr3 =>
3 NaBr + AgN = Na3N + AgBr3
KI + C6H6 + Cl2 = C6H5Cl + KCl + HI =>
KI + C6H6 + Cl2 = C6H5Cl + KCl + HI
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