Chemistry
Balance the following simple equations :
C + O2 ⟶ CO
N2 + O2 ⇌ NO
ZnS + O2 ⟶ ZnO + SO2
Al + O2 ⟶ Al2O3
Mg + N2 ⟶ Mg3N2
Al + N2 ⟶ AlN
NO + O2 ⟶ NO2
SO2 + O2 ⇌ SO3
H2 + Cl2 ⟶ HCl
Fe + Cl2 ⟶ FeCl3
H2S + Cl2 ⟶ S + HCl
FeCl2 + Cl2 ⟶ FeCl3
CO2 + C ⟶ CO
KHCO3 ⟶ K2CO3 + H2O + CO2
K + CO2 ⟶ K2O + C
Ca(OH)2 + HNO3 ⟶ Ca(NO3)2 + H2O
K + H2O ⟶ KOH + H2
Ca + H2O ⟶ Ca(OH)2 + H2
Al + H2O ⟶ Al2O3 + H2
Fe + H2O ⇌ Fe3O4 + H2
Zn + NaOH ⟶ Na2ZnO2 + H2
Zn + HCl ⟶ ZnCl2 + H2
Al + H2SO4 ⟶ Al2(SO4)3 + H2
H2 + O2 ⟶ H2O
N2 + H2 ⟶ NH3
Fe2O3 + H2O ⟶ Fe + H2O
KBr + Cl2 ⟶ KCl + Br2
NaOH + Cl2 ⟶ NaCl + NaClO + H2O
NaHCO3 + H2SO4 ⟶ Na2SO4 + H2O + CO2
Mg + CO2 ⟶ MgO + C
Fe2O3 + CO ⟶ Fe + CO2
CaO + HCl ⟶ CaCl2 + H2O
Chemical Equation
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Answer
2C + O2 ⟶ 2CO
N2 + O2 ⇌ 2NO
2ZnS + 3O2 ⟶ 2ZnO + 2SO2
4Al + 3O2 ⟶ 2Al2O3
3Mg + N2 ⟶ Mg3N2
2Al + N2 ⟶ 2AlN
2NO + O2 ⟶ 2NO2
2SO2 + O2 ⇌ 2SO3
H2 + Cl2 ⟶ 2HCl
2Fe + 3Cl2 ⟶ 2FeCl3
H2S + Cl2 ⟶ S + 2HCl
2FeCl2 + Cl2 ⟶ 2FeCl3
CO2 + C ⟶ 2CO
2KHCO3 ⟶ K2CO3 + H2O + CO2
4K + CO2 ⟶ 2K2O + C
Ca(OH)2 + 2HNO3 ⟶ Ca(NO3)2 + 2H2O
2K + 2H2O ⟶ 2KOH + H2
Ca + 2H2O ⟶ Ca(OH)2 + H2
2Al + 3H2O ⟶ Al2O3 + 3H2
3Fe + 4H2O ⟶ Fe3O4 + 4H2
Zn + 2NaOH ⟶ Na2ZnO2 + H2
Zn + 2HCl ⟶ ZnCl2 + H2
2Al + 3H2SO4 ⟶ Al2(SO4)3 + 3H2
2H2 + O2 ⟶ 2H2O
N2 + 3H2 ⟶ 2NH3
Fe2O3 + 3H2 ⟶ 2Fe + 3H2O
2KBr + Cl2 ⟶ 2KCl + Br2
2NaOH + Cl2 ⟶ NaCl + NaClO + H2O
2NaHCO3 + H2SO4 ⟶ Na2SO4 + 2H2O + 2CO2
2Mg + CO2 ⟶ 2MgO + C
Fe2O3 + 3CO ⟶ 2Fe + 3CO2
CaO + 2HCl ⟶ CaCl2 + H2O
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Related Questions
What do the following symbols present in a chemical equation mean.
(i) ⟶
(ii) ⇌
(iii) (s)
(iv) (I)
(v) (g)
(vi) (aq.)
CaCO3 + 2HCl [dil.] ⟶ CaCl2 + H2O + CO2 [g]
(a) State the information provided by the above chemical equation.
(b) State the information not conveyed by the above chemical equation.
Write balanced equations for the following word equations :
- Potassium nitrate ⟶ Potassium nitrite + Oxygen
- Calcium + Water ⟶ Calcium hydroxide + Hydrogen
- Iron + Hydrochloric acid ⟶ Iron [II] chloride + Hydrogen
- Nitrogen dioxide + Water + Oxygen ⟶ Nitric acid
- Lead dioxide [lead (IV) oxide] ⟶ Lead monoxide + Oxygen
- Aluminium + Oxygen ⟶ Aluminium oxide
- Iron + Chlorine ⟶ Iron [III] chloride
- Potassium bromide + Chlorine ⟶ Potassium chloride + Bromine
- Potassium bicarbonate ⟶ Potassium carbonate + Water + Carbon dioxide
- Calcium hydroxide + Ammonium chloride ⟶ Calcium chloride + Water + Ammonia
Balance the following important equations :
NaHCO3 + H2SO4 ⟶ Na2SO4 + H2O + CO2
NaOH + H2SO4 ⟶ Na2SO4 + H2O
Pb(NO3)2 + NaCl ⟶ NaNO3 + PbCl2
FeSO4 + NaOH ⟶ Na2SO4 + Fe(OH)2
FeCl3 + NaOH ⟶ NaCl + Fe(OH)3
CuSO4 + NaOH ⟶ Na2SO4 + Cu(OH)2
FeCl3 + NH4OH ⟶ NH4Cl + Fe(OH)3
ZnO + NaOH ⟶ Na2ZnO2 + H2O
Pb(OH)2 + NaOH ⟶ Na2PbO2 + H2O
Al2O3.2H2O + NaOH ⟶ NaAlO2 + H2O
NaAlO2 + H2O ⟶ NaOH + Al(OH)3
Al(OH)3 ⟶ Al2O3 + H2O
ZnS + O2 ⟶ ZnO + SO2
Fe2O3 + Al ⟶ Al2O3 + Fe
Al + Cl2 ⟶ AlCl3
NaCl + H2SO4 ⟶ Na2SO4 + HCl
Fe + HCl ⟶ FeCl2 + H2
Na2CO3 + HCl ⟶ NaCl + H2O + CO2
Pb(NO3)2 + HCl ⟶ PbCl2 + HNO3
AgCl + NH4OH ⟶ Ag(NH3)2Cl + H2O
MnO2 + HCl ⟶ MnCl2 + H2O + Cl2
Pb3O4 + HCl ⟶ PbCl2 + H2O + Cl2
KMnO4 + HCl ⟶ KCl + MnCl2 + H2O + Cl2
K2Cr2O7 + HCl ⟶ KCl + CrCl3 + H2O + Cl2
NH4Cl + Ca(OH)2 ⟶ CaCl2 + H2O + NH3
(NH4)2SO4 + NaOH ⟶ Na2SO4 + H2O + NH3
Mg3N2 + H2O ⟶ Mg(OH)2 + NH3
AlN + H2O ⟶ Al(OH)3 + NH3
NH3 + O2 ⟶ N2 + H2O [burning of NH3]
NH3 + O2 ⟶ NO + H2O [Catalytic oxidation of NH3]
NH4OH + H2SO4 ⟶ (NH4)2SO4 + H2O
NH3 + CuO ⟶ Cu + H2O + N2
NH3 + Cl2 ⟶ HCl + NCl3 [nitrogen trichloride]
HNO3 ⟶ H2O + NO2 + O2
Ca(HCO3)2 + HNO3 ⟶ Ca(NO3)2 + H2O + CO2
C + HNO3 [conc.] ⟶ CO2 + H2O + NO2
S + HNO3 [conc.] ⟶ H2SO4 + H2O + NO2
Cu + HNO3 [conc.] ⟶ Cu(NO3)2 + H2O + NO2
C + H2SO4 [conc.] ⟶ CO2 + H2O + SO2
S + H2SO4 [conc.] ⟶ SO2 + H2O
Cu + H2SO4 [conc.] ⟶ CuSO4 + H2O + SO2