Question

34. Mention the changes observed and type of change indicated in following
activities.
a) Reaction between sodium chloride and silver nitrate.
b) Boiling water
c) reaction between Magnesium ribbon and dilute hydrochloric acid.​

Answer 1

Answer:

NaCl + AgNO₃ = NaNO₃ + AgCl.

When a water reaches its boiling point bubbles of gas form in it which rise into the surface and burst into the air.

Mg(s) + 2 HCl(aq) --> MgCl 2(aq) + H 2(g)

Answer 2

Answer:

Explanation:

a) this is a displacement reaction.

the products formed are sodium nitrate and silver chloride.

b) this is an exothermic reaction. evaporation

water on voiling gives h2 gas

c) neutralization reaction

products formed are magnesium chloride and h2o.

hope it helps you.