Para regular el contenido de minerales en el agua destinada a la producción de una cerveza se emplean soluciones de cloruro de calcio. Si se dispone de una solución de CaCl2 5,00 % m/V, y se desea obtener 4,00 L de una solución 5,00x10-3 M en aniones cloruro, ¿qué volumen de solución concentrada se necesita, expresado en mililitros?

what's the question?

explanation:

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.

window cleaner is ammonia dissolved in water. this is an example of a