ACT Science 2.3 Research Summary Passage
ACT Science: Research Summary Passage Drill 2, Problem 3. Why is the salt left behind in the distillation chamber after boiling?
|ACT Science||Research Summary Passage|
|Chemistry||Properties of Matter|
|Product Type||ACT Science|
|Scientific Processes||Valid Conclusions|
What do we need to know to answer this fine question?
Hmm...well, it looks like a 'read the passage to find the answer' type question.
So... where does it say anything about salt being left behind in the distillation chamber?
Well... it says that "The reason that the solute is left in the distillation chamber
after the water is boiled away is that the solute and the water
possess different boiling points."
That... pretty much answers our question.
So, apparently, the solute is left in the chamber because the
solute and water possess different boiling points.
Wait...what's a solute again?
Yeah, no...it's not that gesture of respect. No.
A solute is the smaller component of a solution... the part that's dissolved into the solvent.
So in this case, the solute is the salt.
Looks like B is our answer -- the solute, or salt,
and the water have different boiling points.
As do the test administrators if they catch you
looking at the test of the person sitting next to you...