How does the oxidation state of Li change in the following reaction? Li(s) + NaOH(aq) → LiOH(aq) + Na(s)
O A. It goes from 0 to +1.
O B. It goes from +1 to +2.
O C. It goes from 0 to -1.
O D. It does not change.

A

Explanation:

It's a metal.

Metals in general go positive when the combine with a non metal. Li is going from 0 to 1 and that's A

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.