Question

7. Write the balanced chemical equations for the following reactions Calcium hydroxide + Carbon dioxide Calcium carbonate Wisset (b) Zinc + Silver nitrate Zinc nitrate Silver + (c) Aluminium + Copper chloride Aluminium chloride Copper (d) Barium chloride + Potassium sulphate - Barium sulphate + Potassium chloride B. Write the balanced chemical equation for the following and identify the ty reaction in each case: (a) Potassium bromidelag) + Barium iodide aq) - Potassium iodideld) Barium bromides (b) Zinc carbonates Zinc Oxides + Carbon dioxide​

Answer 1

Answer:

(a) Ca(OH)2 + CO2 --> CaCO3 + H2O (already balanced)

(b) Zn + 2AgNO3 --> Zn(NO3)2 + 2Ag

(c) 2Al + 3CuCl2 --> 2AlCl3 + 3Cu

(d) BaCl2 + K2SO4 --> BaSO4 + 2KCl

B.

(a) 2KBr + BaI2 --> 2KI + BaBr2  (double displacement reaction)

(b) ZnCo3 ---> ZnO + CO2 (decomposition reaction)