Question

You are provided with two ionic compounds-Sodium sulphate( Na2SO4) and barium chloride(BaCl2).

i. Identify the positive ion(cations)and negative ions(anions) in each.

ii. Identify the type of reaction that will occur ,if you combine the above two reactants.

iii. write chemical equation for the chemical reaction taking place.​

Answer 1

Answer :-

$\bold{Na_{2}SO_{4}}$

Cation :- There are positively charge particle. Na +

Anions :- They are Negatively charge particle. SO4 -

$\bold{BaCl_{2}}$

Cation :- Ba +

Anion :- Cl2 -

$ii) \bold{BaCl_{2} + Na_{2}SO_{4}-> BaSO_{4} + 2NaCl}$

Barium chloride reacts with Sodium sulphate to produce Barium sulphate and Sodium Chloride.

iii) Double Displacment :- The reaction in which exchange of ion take place.

When we add sodium sulphate to barium chloride white precipitation is form immediately which is insoluble in dilute Hydrochloric acid (HCl)

Answer 2

i. $\bold{{Na}_{2}S{O}_{4}}$

Cation: ${Na}^{+}$

Anion: ${S{O}_{4}}^{2-}$

$\bold{Ba{Cl}_{2}}$

Cation: ${Ba}^{2+}$

Anions: ${Cl}^{-}$

ii. Double Displacement reaction will occur.

iii. $Ba{Cl}_{2} + {Na}_{2}S{O}_{4} \longrightarrow BaS{O}_{4} + 2NaCl$

Terms used:

• Cations: The positively charged ions are known as Cations.
• Anions: The negatively charged ion are known as Anions.
• Double Displacement reaction: Those reactions in which two compounds react by exchanging ions.