(i) Na₂CO₃ + 2HCl → 2NaCl + H₂CO₃; Type of reaction: Double displacement
(ii) NH₄NO₂ → N₂ + 2H₂O; Type of reaction: Decomposition
(iii) 2N₂ + 5O₂ → 2N₂O₅; Type of reaction: Synthesis
(iv) MgCO₃ → MgO + CO₂; Type of reaction: Decomposition
(v) 2KBr + Cl₂ → 2KCl + Br₂; Type of reaction: Single displacement
(vi) Zn + CuSO₄ → Cu + ZnSO₄; Type of reaction: Single displacement
(vii) 4P + 3O₂ → P₄O₆; Type of reaction: Synthesis
(viii) SrBr₂ + (NH₄)₂CO₃ → SrCO₃ + 2NH₄Br; Type of reaction: Double displacement
(ix) 2AgNO₃ + (NH₄)₂CrO₄ → Ag₂CrO₄ + 2NH₄NO₃; Type of reaction: Double displacement
(x) 2K + 2H₂O → 2KOH + H₂; Type of reaction: Single displacement
(xi) 2Al + 3Pb(NO₃)₂ → 2Al(NO₃)₃ + 3Pb; Type of reaction: Single displacement
(xii) 3Fe + 2O₂ → Fe₃O₄; Type of reaction: Synthesis
Parent Tip: Review the logic above to help your child master the concept of balancing chemical equations worksheet pdf.