Which is the BEST explanation for how patterns in the periodic table can help us predict what elements may be able to replace one another?*
Elements in the same column have the same number of valence electrons, so they
can bond in similar ways.
O Molecules form when salts are created.
O Smaller atoms pull on larger ones until they lose their charge.
Larger atoms can always bond with smaller atoms, so we can use size to predict
replacements.

the answer is c. nacl

so she was walking and she stepped on warm jeffy , uh uh uhh dadye i just pooped my pants

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.