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3 NaBH4 + 4 BF3 = 2 B2H6 + 3 NaBF4
PbO2 = PbO + O2 =>
2 PbO2 = 2 PbO + O2
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
H2SO4 + H2S = SO2 + H2O =>
3 H2SO4 + H2S = 4 SO2 + 4 H2O
SO2 + H2O = H2SO3 =>
SO2 + H2O = H2SO3
H2SO4 + HI = H2S + I2 + H2O =>
H2SO4 + 8 HI = H2S + 4 I2 + 4 H2O
BeCl2 + Mg = Be + MgCl =>
BeCl2 + 2 Mg = Be + 2 MgCl
KMnO4 + HCOH + H2O = HCOOH + MnO2 + KOH =>
2 KMnO4 + 3 HCOH + H2O = 3 HCOOH + 2 MnO2 + 2 KOH
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
HI + H2SO4 = S + I2 + H2O =>
6 HI + H2SO4 = S + 3 I2 + 4 H2O
Fe2O3 + CO = Fe + CO2 =>
Fe2O3 + 3 CO = 2 Fe + 3 CO2
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
N + H = NH3 =>
N + 3 H = NH3
NaOH + HNO3 = NaNO3 + H2O =>
NaOH + HNO3 = NaNO3 + H2O
Na2CO3(aq) + CuCl2(aq) = CuCO3(s) + NaCl(aq) =>
Na2CO3(aq) + CuCl2(aq) = CuCO3(s) + 2 NaCl(aq)
sodium + oxygen = sodiumoxide =>
4 Na + O2 = 2 Na2O
MG + HCl = MGCl2 + H2 =>
MG + 2 HCl = MGCl2 + H2
K2Cr2O7 + FeSO4 + H2SO4 = K2SO4 + Cr2(SO4)3 + Fe2(SO4)3 + H2O =>
K2Cr2O7 + 6 FeSO4 + 7 H2SO4 = K2SO4 + Cr2(SO4)3 + 3 Fe2(SO4)3 + 7 H2O
KOH + Cl2 = KClO3 + KCl + H2O =>
6 KOH + 3 Cl2 = KClO3 + 5 KCl + 3 H2O
FeS + O2 = Fe2O3 + SO2 =>
4 FeS + 7 O2 = 2 Fe2O3 + 4 SO2
Be(s) + O2 = BeO =>
2 Be(s) + O2 = 2 BeO
Cr2O3 + KNO3 + KOH = K2CrO4 + KNO2 + H20 =>
5 Cr2O3 + 5 KNO3 + 20 KOH = 10 K2CrO4 + 5 KNO2 + H20
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
CO2 + H2O = O2 + C6H12O6 =>
6 CO2 + 6 H2O = 6 O2 + C6H12O6
Cu + Zn(NO3)2 = Cu(NO3)2 + Zn2 =>
2 Cu + 2 Zn(NO3)2 = 2 Cu(NO3)2 + Zn2
KCIO3 + KOH + MnO2 = K2MnO4 + KCI + H2O =>
KCIO3 + 6 KOH + 3 MnO2 = 3 K2MnO4 + KCI + 3 H2O
CaO + H2O = Ca(OH)2 =>
CaO + H2O = Ca(OH)2
H2S + SO2 = S2 + H2O =>
4 H2S + 2 SO2 = 3 S2 + 4 H2O
potassium + water = potassiumhydroxide + hydrogen =>
2 K + 2 H2O = 2 KOH + H2
Na2O2 + H2O = H2O2 + NaOH =>
Na2O2 + 2 H2O = H2O2 + 2 NaOH
HCL + LIOH = H2O + LICL =>
HCL + LIOH = H2O + LICL
Cu + H2SO4 = Cu2SO4 + H2O + SO2 =>
2 Cu + 2 H2SO4 = Cu2SO4 + 2 H2O + SO2
Be(s) + H2O = BeO + H2 =>
Be(s) + H2O = BeO + H2
C11H20 + O2 = CO2 + H2O =>
C11H20 + 16 O2 = 11 CO2 + 10 H2O
Cr2O3(s) + C(s) = Cr(s) + CO(g) =>
Cr2O3(s) + 3 C(s) = 2 Cr(s) + 3 CO(g)
NH3 + H2SO4 = (NH4)2SO4 =>
2 NH3 + H2SO4 = (NH4)2SO4
BaCl2 + H2SO4 = BaSO4 + HCl =>
BaCl2 + H2SO4 = BaSO4 + 2 HCl
SrCl2 + AgNo3 = Sr(No3)2 + AgCl =>
SrCl2 + 2 AgNo3 = Sr(No3)2 + 2 AgCl
Zn(NO3)2 + NH4Cl = ZnCl + NH4(NO3)2 =>
Zn(NO3)2 + NH4Cl = ZnCl + NH4(NO3)2
Na + H3PO4 = Na3PO4 + H2 =>
6 Na + 2 H3PO4 = 2 Na3PO4 + 3 H2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
SO2 + Al2O3 = Al2(SO3)3 =>
3 SO2 + Al2O3 = Al2(SO3)3
PbCO3 = PbO + CO2 =>
PbCO3 = PbO + CO2
NaOH + H2So4 = Na2So4 + H2O =>
2 NaOH + H2So4 = Na2So4 + 2 H2O
PbCO3 = PbO + CO2 =>
PbCO3 = PbO + CO2
PH3 + O2 = P2O5 + H2O =>
2 PH3 + 4 O2 = P2O5 + 3 H2O
calcium + water = calciumhydroxide + hydrogen =>
Ca + 2 H2O = Ca(OH)2 + H2
Copper(II)Nitrate + SodiumHydroxide = Copper(II)Hydroxide + SodiumNitrate =>
Copper(II)Nitrate + SodiumHydroxide = Copper(II)Hydroxide + SodiumNitrate
Zn(NO3)2 + NaCl = ZnCl + Na(NO3)2 =>
Zn(NO3)2 + NaCl = ZnCl + Na(NO3)2
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
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