Chemistry 110 experiments 4 pre lab how might one distinguish between solutions that are categorized as a strong electrolytes and solutions that are categorized as weak electrolytes

You could use a conductivity tester to test conductivities of the solutions.

Explanation:

The light bulb (see image below) will glow brightly in a solution of a strong electrolyte like KCl, because there will be many ions available to carry the current.

A solution of a weak electrolyte like acetic acid will contain relatively few ions, so the light bulb will glow weakly.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.