Chemistry
Write chemical equations for the following word equations and balance them.
(a) Carbon + Oxygen ⟶ Carbon dioxide
(b) Nitrogen + Oxygen ⟶ Nitrogen monoxide
(c) Calcium + Nitrogen ⟶ Calcium nitride
(d) Calcium oxide + Carbon dioxide ⟶ Calcium carbonate
(e) Magnesium + Sulphuric acid ⟶ Magnesium sulphate + Hydrogen
(f) Sodium reacts with water to form sodium hydroxide and hydrogen.
Chemical Equation
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Answer
The balanced chemical equations for the word equations are given below:
(a) C + O2 ⟶ CO2
(b) N2 + O2 ⟶ 2NO
(c) 3Ca + N2 ⟶ Ca3N2
(d) CaO + CO2 ⟶ CaCO3
(e) Mg + H2SO4 ⟶ MgSO4 + H2↑
(f) 2Na + 2H2O ⟶ 2NaOH + H2↑
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Related Questions
State the information conveyed by the following equation.
Zn(s) + 2HCl (aq) ⟶ ZnCl2 (aq) + H2↑
What is the limitation of the reaction given in question 2?
Balance the following equations:
(a) Fe + H2O ⟶ Fe3O4 + H2
(b) Ca + N2 ⟶ Ca3N2
(c) Zn + KOH ⟶ K2ZnO2 + H2
(d) Fe2O3 + CO ⟶ Fe + CO2
(e) PbO + NH3 ⟶ Pb + H2O + N2
(f) Pb3O4 ⟶ PbO + O2
(g) PbS + O2 ⟶ PbO + SO2
(h) S + H2SO4 ⟶ SO2 + H2O
(i) S + HNO3 ⟶ H2SO4 + NO2 + H2O
(j) MnO2 + HCl ⟶ MnCl2 + H2O + Cl2
(k) C + H2SO4 ⟶ CO2 + H2O + SO2
(l) KOH + Cl2 ⟶ KCl + KClO + H2O
(m) NO2 + H2O ⟶ HNO2 + HNO3
(n) Pb3O4 + HCl ⟶ PbCl2 + H2O + Cl2
(o) H2O + Cl2 ⟶ HCl + O2
(p) NaHCO3 ⟶ Na2CO3 + H2O + CO2
(q) HNO3 + H2S ⟶ NO2 + H2O + S
(r) P + HNO3 ⟶ NO2 + H2O + H3PO4
(s) Zn + HNO3 ⟶ Zn(NO3)2 + H2O + NO2
Modern atomic symbols are based on the method proposed by
- Bohr
- Dalton
- Berzelius
- Alchemist