Answer to Question #349626 in Chemistry for hello

Question

Consider the reaction Cd (s) + 2AgNO3 (aq) → 2Ag (s) + Cd(NO3

)2 (aq)

a. Rewrite the equation to show the dissociated ions. This is called the dissociation equation. Include

states. (1)

b. Identify the spectator ion. (1)

c. Write the balanced net ionic equation. Include states. (1)

d. Which entity is oxidized? (1)

e. Which entity is reduced? (1)

f. Which entity is the oxidizing agent? (1)

g. Which entity is the reducing agent? (1)

h. Write the balanced oxidation half-reaction. (1)

i. Write the balanced reduction half-reaction. (1)

Answer 1

Solution:

Balanced chemical equation: Cd(s) + 2AgNO₃(aq) → 2Ag(s) + Cd(NO₃)₂(aq)

(A): Total ionic equation (dissociation equation):

Cd(s) + 2Ag⁺(aq) + 2NO₃⁻(aq) → 2Ag(s) + Cd²⁺(aq) + 2NO₃⁻(aq)

(B): Spectator ions are ions that are found on both sides of a chemical equation.

Therefore, the spectator ion for this equation is nitrate ion (NO₃⁻, aq)

(C): Balanced net ionic equation: Cd(s) + 2Ag⁺(aq) → 2Ag(s) + Cd²⁺(aq)

(D): Cd(s) is oxidized

(E): Ag⁺(aq) in AgNO₃(aq) is reduced

(F): AgNO₃(aq) is the oxidizing agent

(G): Cd(s) is the reducing agent

(H): Balanced oxidation half-reaction: Cd(s) − 2e⁻ → Cd²⁺(aq)

(I): Balanced reduction half-reaction: Ag⁺(aq) + e⁻ → Ag(s)