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4 Cr + 3 O2 = 2 Cr2O3
NH4ClO4 = N2 + Cl2 + O2 + H2O =>
2 NH4ClO4 = N2 + Cl2 + 2 O2 + 4 H2O
AlCl3 + NaOH = Al(OH)3 + NaCl =>
AlCl3 + 3 NaOH = Al(OH)3 + 3 NaCl
Pb + FeSO4 = PbSO4 + Fe =>
Pb + FeSO4 = PbSO4 + Fe
Ca + P = Ca2P2 =>
2 Ca + 2 P = Ca2P2
Al + Cl2 = AlCl3 =>
2 Al + 3 Cl2 = 2 AlCl3
C4H10 + O2 = CO2 + H2O =>
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
AgNO3(aq) + Cu(s) = Cu(NO3)2(aq) + Ag(s) =>
2 AgNO3(aq) + Cu(s) = Cu(NO3)2(aq) + 2 Ag(s)
CS2 + H2S + Cu = Cu2S + CH4 =>
CS2 + 2 H2S + 8 Cu = 4 Cu2S + CH4
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
NaNo3 + PBO = PB(No3)2 + Na2O =>
2 NaNo3 + PBO = PB(No3)2 + Na2O
P4 + NO = P4O6 + N2 =>
P4 + 6 NO = P4O6 + 3 N2
C8H16 + O2 = CO2 + H2O =>
C8H16 + 12 O2 = 8 CO2 + 8 H2O
Cuso4*5H2O = Cuso4 + H2O =>
Cuso4*5H2O = Cuso4 + 5 H2O
CaO + P2O5 = Ca3(PO4)2 =>
3 CaO + P2O5 = Ca3(PO4)2
Al + FeO = Al2O3 + Fe =>
2 Al + 3 FeO = Al2O3 + 3 Fe
N2O5 = NO2 + O2 =>
2 N2O5 = 4 NO2 + O2
NaNo3 + PBO = PB(No3)2 + Na2O =>
2 NaNo3 + PBO = PB(No3)2 + Na2O
Cu(OH)2 = CuO + H2O =>
Cu(OH)2 = CuO + H2O
CuO + HCl = CuCl2 + H2O =>
CuO + 2 HCl = CuCl2 + H2O
Cu2O + H2SO4 = CuSO4 + Cu + H2O =>
Cu2O + H2SO4 = CuSO4 + Cu + H2O
K2Sio3 + HNO3 = KNO3 + H2Sio3 =>
K2Sio3 + 2 HNO3 = 2 KNO3 + H2Sio3
PH3 + KMNO4 + H2SO4 = K2SO4 + MNSO4 + H3PO4 + H2O =>
5 PH3 + 8 KMNO4 + 12 H2SO4 = 4 K2SO4 + 8 MNSO4 + 5 H3PO4 + 12 H2O
(NH4)3PO4 = H3PO4 + NH3 =>
(NH4)3PO4 = H3PO4 + 3 NH3
H2O = H2 + O2 =>
2 H2O = 2 H2 + O2
KHSO4 = K2S2O7 + H2O =>
2 KHSO4 = K2S2O7 + H2O
NH3 + BaCl2 = NH3Cl + Ba =>
2 NH3 + BaCl2 = 2 NH3Cl + Ba
BaCl2 + Na2CO3 = BaCO3 + NaCl =>
BaCl2 + Na2CO3 = BaCO3 + 2 NaCl
ZNO + H2O = ZN(OH)2 =>
ZNO + H2O = ZN(OH)2
H2So4 + LiOH = Li2So4 + H2O =>
H2So4 + 2 LiOH = Li2So4 + 2 H2O
Si2H3 + O2 = SiO2 + H20 =>
20 Si2H3 + 40 O2 = 40 SiO2 + 3 H20
Ca3P2 + H2O = Ca(OH)2 + PH3 =>
Ca3P2 + 6 H2O = 3 Ca(OH)2 + 2 PH3
KIO3 + KI + H2So4 = K2So4 + H2O + I2 =>
KIO3 + 5 KI + 3 H2So4 = 3 K2So4 + 3 H2O + 3 I2
Co3 + B2 = Co3B2 =>
Co3 + B2 = Co3B2
S2O3 + OH = SO3 + H2O =>
S2O3 + 6 OH = 2 SO3 + 3 H2O
Pb(NO3)2 + NaOH = Pb(OH)2 + NaNO3 =>
Pb(NO3)2 + 2 NaOH = Pb(OH)2 + 2 NaNO3
NH4NO3 = N2O + H2O =>
NH4NO3 = N2O + 2 H2O
CO + Fe2O3 = Fe + CO3 =>
3 CO + 2 Fe2O3 = 4 Fe + 3 CO3
CH4 + Cl2 = CCl4 + HCl =>
CH4 + 4 Cl2 = CCl4 + 4 HCl
Cu(No3)2 + KI = CuI + I2 + KNo3 =>
2 Cu(No3)2 + 4 KI = 2 CuI + I2 + 4 KNo3
Mg + H2SO4 = MgSO4 + H2 =>
Mg + H2SO4 = MgSO4 + H2
NaNO3 = NaNO2 + O2 =>
2 NaNO3 = 2 NaNO2 + O2
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Cu + HGNO3 = Cu(NO3)2 + HG =>
Cu + 2 HGNO3 = Cu(NO3)2 + 2 HG
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
Ag + H2S + O2 = Ag2S + H2O =>
4 Ag + 2 H2S + O2 = 2 Ag2S + 2 H2O
H{+} + e = H2 =>
2 H{+} + 2e = H2
KMnO4 + Cr2(SO4)2 + KOH = K2MnO4 + K2SO4 + K2CrO4 + H2O =>
8 KMnO4 + Cr2(SO4)2 + 16 KOH = 8 K2MnO4 + 2 K2SO4 + 2 K2CrO4 + 8 H2O
NH3 + H2S04 = (NH4)2S04 =>
2 NH3 + H2S04 = (NH4)2S04
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