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3 Ca + 2 P = Ca3P2(s)
K + I2 = KI =>
2 K + I2 = 2 KI
CaO + SiO2 = CaSiO3 =>
CaO + SiO2 = CaSiO3
MgO + HF = Mg1F2 + H2O1 =>
MgO + 2 HF = Mg1F2 + H2O1
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
H2SO4 + BeCO3 = BeSO4 + H2CO3 =>
H2SO4 + BeCO3 = BeSO4 + H2CO3
Mg + SiO2 = Mg2Si + MgO =>
4 Mg + SiO2 = Mg2Si + 2 MgO
KMnO4 + Cr2(SO4)2 + KOH = K2CrO4 + K2SO4 + MnO2 + H2O =>
8 KMnO4 + 3 Cr2(SO4)2 + 16 KOH = 6 K2CrO4 + 6 K2SO4 + 8 MnO2 + 8 H2O
CrCl2 + K2S = CrS + KCl =>
CrCl2 + K2S = CrS + 2 KCl
C + H2O = COH2 =>
C + H2O = COH2
Pb(NO3)2 + Na(OH) = Na(NO3) + Pb(OH)2 =>
Pb(NO3)2 + 2 Na(OH) = 2 Na(NO3) + Pb(OH)2
Al + NiBr2 = AlBr3 + Ni =>
2 Al + 3 NiBr2 = 2 AlBr3 + 3 Ni
NH4 + BaCl2 + OH = Ba(OH)2 + NH4Cl =>
2 NH4 + BaCl2 + 2 OH = Ba(OH)2 + 2 NH4Cl
NaHCO3 + HA = H2CO3 + NaA =>
NaHCO3 + HA = H2CO3 + NaA
MgCl2 + NaOH = Mg(OH)2 + NaCl =>
MgCl2 + 2 NaOH = Mg(OH)2 + 2 NaCl
C3H4 + K2Cr2O7 + H2SO4 = C2H5COOH + K2SO4 + Cr2(SO4)3 + H2O =>
3 C3H4 + K2Cr2O7 + 4 H2SO4 = 3 C2H5COOH + K2SO4 + Cr2(SO4)3 + H2O
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Cu + Ag{+] = Cu{2+}+Ag =>
Cu + 2 Ag{+] = Cu{2+}+2Ag
HC8H4O4 + NaOH = Na + C8H4O4 + H2O =>
HC8H4O4 + NaOH = Na + C8H4O4 + H2O
Zn + AgNO3 = Zn(NO3)2 + Ag =>
Zn + 2 AgNO3 = Zn(NO3)2 + 2 Ag
Na2SO4 + BaCl2 = Na2SO4BaCl2 =>
Na2SO4 + BaCl2 = Na2SO4BaCl2
F + AgNO3 = AgF + (NO3)2 =>
2 F + 2 AgNO3 = 2 AgF + (NO3)2
Na2CO3 + HCe = NaCe + H2CO3 =>
Na2CO3 + 2 HCe = 2 NaCe + H2CO3
AlBr3 + K2CO3 = Al2(CO3)3 + KBr =>
2 AlBr3 + 3 K2CO3 = Al2(CO3)3 + 6 KBr
AgC2H3O2 + Ba(NO3)2 = AgNO3 + Ba(C2H3O2)2 =>
2 AgC2H3O2 + Ba(NO3)2 = 2 AgNO3 + Ba(C2H3O2)2
FeCl3(aq) + Na2CO3(aq) = Fe2(CO3)3(s) + Na2Cl2(aq) =>
2 FeCl3(aq) + 3 Na2CO3(aq) = Fe2(CO3)3(s) + 3 Na2Cl2(aq)
C + H2 = CH4 =>
C + 2 H2 = CH4
CH3C6H4CH2OH + K2Cr2O7 + H2SO4 = HOOCC6H4COOH + K2SO4 + Cr2(SO4)3 + H2O =>
3 CH3C6H4CH2OH + 5 K2Cr2O7 + 20 H2SO4 = 3 HOOCC6H4COOH + 5 K2SO4 + 5 Cr2(SO4)3 + 26 H2O
H8C6O6 + NaOH = H2O + NaH7C6O6 =>
H8C6O6 + NaOH = H2O + NaH7C6O6
Se(s) + O2(g) = SeO3(g) =>
2 Se(s) + 3 O2(g) = 2 SeO3(g)
FeO + H{+} = H2O + Fe{2+} =>
FeO + 2 H{+} = H2O + Fe{2+}
CuOH = Cu2O + H2O =>
2 CuOH = Cu2O + H2O
Co + HClO4 = CoClO4 + HClO3 + H2O =>
2 Co + 3 HClO4 = 2 CoClO4 + HClO3 + H2O
(NH4)3PO4 + NaBr = Na3PO4 + (NH4)Br =>
(NH4)3PO4 + 3 NaBr = Na3PO4 + 3(NH4)Br
MgCl2 + KOH = Mg(OH)2 + KCl =>
MgCl2 + 2 KOH = Mg(OH)2 + 2 KCl
HgO + H2O = H4HgO3 =>
HgO + 2 H2O = H4HgO3
LiNO3 + BaSO4 = Ba(NO3)2 + Li2SO4 =>
2 LiNO3 + BaSO4 = Ba(NO3)2 + Li2SO4
Li + Mg2{+} = Li{+} + Mg =>
Li + Mg2{+} = Li{+} + 2 Mg
Mg + PbPO4 = Mg3(PO4)2 + Pb =>
3 Mg + 2 PbPO4 = Mg3(PO4)2 + 2 Pb
S8 + Cl2 = S1Cl2 =>
S8 + 8 Cl2 = 8 S1Cl2
Al(s) + HBr(aq) = AlBr3(aq) + H2(g) =>
2 Al(s) + 6 HBr(aq) = 2 AlBr3(aq) + 3 H2(g)
HC2H3O2 + KNO3 = KC2H3O2 + HNO3 =>
HC2H3O2 + KNO3 = KC2H3O2 + HNO3
Cu2O + C = Cu + CO2 =>
2 Cu2O + C = 4 Cu + CO2
AlCl3 + H2SO4 = Al2(SO4)3 + HCl* =>
2 AlCl3 + 3 H2SO4 = Al2(SO4)3 + 6 HCl*
C6H5CH3 + KMnO4 + H2SO4 = C6H5COOH + MnSO4 + K2SO4 + H2O =>
5 C6H5CH3 + 6 KMnO4 + 9 H2SO4 = 5 C6H5COOH + 6 MnSO4 + 3 K2SO4 + 14 H2O
Cr + H2 = CrH2 =>
Cr + H2 = CrH2
KOH + MgCl2 = KCl2 + Mg(OH) =>
KOH + MgCl2 = KCl2 + Mg(OH)
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
K4(Fe(CN)6) + H2O2 = K3(Fe(CN)6) + KOH =>
2 K4(Fe(CN)6) + H2O2 = 2 K3(Fe(CN)6) + 2 KOH
[Ni(H2O)6]{2+} + H2O = [Ni(H2O)5OH]{+} + H3O{+} =>
[Ni(H2O)6]{2+} + H2O = [Ni(H2O)5OH]{+} + H3O{+}
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