1. Din 800 grame soluţie de concentraţie 20% se evaporă 200 grame apă. Ce concentraţie procentuală va avea noua soluţie obţinută?

Percentage concentration after evaporated : 26.7%

From 800 grams of 20% concentration solution evaporate 200 grams

the water. What percentage concentration will the new solution obtained have?

From 800 g solution, mass of solute :

mass of water :

After water evaporated :

mass solution after evaporated :

%concentration :

answer: i dont know the answer but this might

explanation:

l

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.