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(a)PbCO3(s) = PbO(s)CO2(g)
KOH + Mn(NO3)3 = KNO3 + Mn(OH)3 =>
3 KOH + Mn(NO3)3 = 3 KNO3 + Mn(OH)3
W + Cl = Cl6W =>
W + 6 Cl = Cl6W
CrBr2(aq) + Na2CO3(aq) = CrCO3(s) + NaBr(aq) =>
CrBr2(aq) + Na2CO3(aq) = CrCO3(s) + 2 NaBr(aq)
H3PO4 + N2H8MoO4 + HNO3 = N3H12PO4*12MoO3 + NH4NO3 + H2O =>
H3PO4 + 12 N2H8MoO4 + 21 HNO3 = N3H12PO4*12MoO3 + 21 NH4NO3 + 12 H2O
MgO + Cr = Cr2O3 + Mg =>
3 MgO + 2 Cr = Cr2O3 + 3 Mg
W + Cl = WCl4 =>
W + 4 Cl = WCl4
AlMg + O2 = Al2O3 + MgO =>
4 AlMg + 5 O2 = 2 Al2O3 + 4 MgO
HCl + Br = HBr + Cl2 =>
2 HCl + 2 Br = 2 HBr + Cl2
HNO2 + NaOH = NaNO2(aq) + H2O(l) =>
HNO2 + NaOH = NaNO2(aq) + H2O(l)
Cu + H2SO4(concentrated) = SO2 + CuSO4 + H2O =>
Cu + 2 H2SO4(concentrated) = SO2 + CuSO4 + 2 H2O
Mn(NO3)2 + ZnSO4 = Mn(SO4)2 + Zn(NO3) =>
Mn(NO3)2 + 2 ZnSO4 = Mn(SO4)2 + 2 Zn(NO3)
Na2SO4 = Na{+} + SO4{2-}\ =>
Na2SO4 = 2 Na{+} + SO4{2-}\
KMnO4(ac) + HCl(ac) = KCl(ac) + MnCl2(ac) + H2O(l) + Cl2(g) =>
2 KMnO4(ac) + 16 HCl(ac) = 2 KCl(ac) + 2 MnCl2(ac) + 8 H2O(l) + 5 Cl2(g)
FeSO4 + AgNO3 = Ag2SO4 + Fe(NO3)2 =>
FeSO4 + 2 AgNO3 = Ag2SO4 + Fe(NO3)2
Cu(s) + Ag(NO3)2(aq) = CuNO3(aq) + Ag(s) =>
2 Cu(s) + Ag(NO3)2(aq) = 2 CuNO3(aq) + Ag(s)
W + Cl2 = WCl2 =>
W + Cl2 = WCl2
Na2CO3 + KF = NaF + K2CO3 =>
Na2CO3 + 2 KF = 2 NaF + K2CO3
SbH3 + KClO3 + KOH + H2O = K[Sb(OH)6] + KCl =>
3 SbH3 + 4 KClO3 + 3 KOH + 3 H2O = 3 K[Sb(OH)6] + 4 KCl
BaCl2(aq) + AgNo3(aq) = AgCl(s) + Ba(No3)2(aq) =>
BaCl2(aq) + 2 AgNo3(aq) = 2 AgCl(s) + Ba(No3)2(aq)
C4H10H + K2Cr2O7 + H2SO4 = C4H8O + K2SO4 + Cr2(SO4)3 + H2O =>
6 C4H10H + 5 K2Cr2O7 + 20 H2SO4 = 6 C4H8O + 5 K2SO4 + 5 Cr2(SO4)3 + 29 H2O
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
CuCl2 + HCl = CuCl + HCl2 =>
CuCl2 + HCl = CuCl + HCl2
Na2SO3 = Na2S + Na + SO4 =>
4 Na2SO3 = Na2S + 6 Na + 3 SO4
W + Cl2 = WCl5 =>
2 W + 5 Cl2 = 2 WCl5
Pb(NO3)2 + NaI = PbI2 + NaNO3 =>
Pb(NO3)2 + 2 NaI = PbI2 + 2 NaNO3
Hg2CrO4 = Cr2O3 + Hg + O2 =>
4 Hg2CrO4 = 2 Cr2O3 + 8 Hg + 5 O2
C3H8O + K2CrO4 + H2SO4 = C3H6O + K2SO4 + Cr2(SO4)3 + H2O =>
3 C3H8O + 2 K2CrO4 + 5 H2SO4 = 3 C3H6O + 2 K2SO4 + Cr2(SO4)3 + 8 H2O
Sn + HNO3 = H2SnO3 + NO2 + H2O =>
Sn + 4 HNO3 = H2SnO3 + 4 NO2 + H2O
Ag3AsO4 + SnSO4 + H2SO4 = Sn(SO4)2 + AsH3 + Ag + H2O =>
2 Ag3AsO4 + 11 SnSO4 + 11 H2SO4 = 11 Sn(SO4)2 + 2 AsH3 + 6 Ag + 8 H2O
HClO + Mn(OH)2 = Mn(ClO)2 + H2O =>
2 HClO + Mn(OH)2 = Mn(ClO)2 + 2 H2O
H2CO3(aq) = CO2(g) + H2O(l) =>
H2CO3(aq) = CO2(g) + H2O(l)
F + W + P + S = FW2P6S3 =>
F + 2 W + 6 P + 3 S = FW2P6S3
C6H4(OH)(CH3) + O2 = C6H4(OH)(COOCH3) + H2O =>
16 C6H4(OH)(CH3) + 17 O2 = 14 C6H4(OH)(COOCH3) + 8 H2O
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
CoCl2 + NH4OH = Co(NH3)4Cl2 + H2O =>
CoCl2 + 4 NH4OH = Co(NH3)4Cl2 + 4 H2O
Pb(NO3)2 + Na2S = PbS2 + Na2NO3 =>
Pb(NO3)2 + 2 Na2S = PbS2 + 2 Na2NO3
MgCl2 + LiOH = Mg(OH)2 + LiCl =>
MgCl2 + 2 LiOH = Mg(OH)2 + 2 LiCl
H{+} + HPO4{2-} + C6H12O6 = CO2 + PH3 + H2O =>
6 H{+} + 3 HPO4{2-} + C6H12O6 = 6 CO2 + 3 PH3 + 6 H2O
[Ag(NH3)2]NO3 + KI = AgI + NH3 + KNO3 =>
[Ag(NH3)2]NO3 + KI = AgI + 2 NH3 + KNO3
C5H5 + HNO3 = H2O + CO2 + N2 =>
2 C5H5 + 10 HNO3 = 10 H2O + 10 CO2 + 5 N2
Na2MoO4*2H2O = Na2MoO4 + H2O =>
Na2MoO4*2H2O = Na2MoO4 + 2 H2O
Na2SO3 + KMnO4 + HCl = Na2SO4 + MnCl + KCl + H2O =>
3 Na2SO3 + KMnO4 + 2 HCl = 3 Na2SO4 + MnCl + KCl + H2O
FeBr3 + H2SO4 = Fe2(SO4)3 + HBr =>
2 FeBr3 + 3 H2SO4 = Fe2(SO4)3 + 6 HBr
Al(s) + NH4ClO4(s) = NH3 + Al2O3(s) + Cl2(s) + H2O(l) =>
14 Al(s) + 6 NH4ClO4(s) = 6 NH3 + 7 Al2O3(s) + 3 Cl2(s) + 3 H2O(l)
H(g) + Cl2(g) = HCl(g) =>
2 H(g) + Cl2(g) = 2 HCl(g)
C13H10O + O2 = CO2 + H2O =>
C13H10O + 15 O2 = 13 CO2 + 5 H2O
CaCO3 + (NH4)2SO4 = CaSO4 + (NH4)2CO3 =>
CaCO3 + (NH4)2SO4 = CaSO4 + (NH4)2CO3
MgCl = Cl2 + Mg =>
2 MgCl = Cl2 + 2 Mg
Al(s) + Pb(C2H3O2)2(ac) = Al(C2H3O2)2(ac) + Pb(s) =>
Al(s) + Pb(C2H3O2)2(ac) = Al(C2H3O2)2(ac) + Pb(s)
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