Question

5
28. (a) Classify the following reactions into different types:
(i) AgNO, (aq) + NaCl(aq) → AgCl (s) + NaNO, (aq)
(ii) Ca0 (s) + H20 (1) Ca(OH)2 (aq)
(iii) 2KCIO, heas 2KCI+ 302
(iv) Zn + CuSO4 ZnSO4 + Cu
(b) Translate the following statements into a balanced chemical equation:
Barium chloride reacts with aluminum sulphate to give aluminum chloride and barium
sulphate.
(c) Give an example of an exothermic and endothermic reactions.​

Answer 1

Answer:

1)Double displacement reaction

2)Combination reaction

3)Thermal Decomposition reaction

4)Single displacement reaction

b)3BaCl2+Al2(SO4)3→3BaSO4+2AlCl3

c)Reactions in which heat is produced and released along with the formation of products are called exothermic reactions.

Example:CaO+H20→Ca(OH)2+heat

Reactions in which heat or energy is absorbed is called endothermic reactions.

Example: CH4+2O2→CO2+2H2O

Hope it helps! Have a nice day!!