Consider the following reaction at 298K.
Cu2+ (aq) + 2 Fe2+ (aq) Cu (s) + 2 Fe3+ (aq)
Which of the following statements are correct? Choose all that apply.
a. K < 1
b. delta Go < 0
c. n = 4 mol electrons Eocell < 0
d. The reaction is product-favored.

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).

the correct answer is:

a. formation of precipitation