Which of the following pairs would have the greatest coulombic attraction in a solid compound? 1. mg2+, s2- 2. mg2+, se2- 3.mg2+, o2-

Your answer would be 3. mg2+,O2

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).