The easiest way to answer this question is just to get the answer first. The answer is A with the added comment that no chemical reaction has taken place.
Layered means that the chemicals are not soluble in one another. B is not the answer.
C is eliminated by what what was said about A.
D a solution is not a pure substance (singular) by itself. There are at least 2 chemicals together.
I am thinking that maybe the problem is not with the calibration. It might be that the buffered solution is already expired since at this point the solution is already not stable and will give a different pH reading than what is expected.
Answer:
ok so
Explanation:
Im not sure rn but ill get back to you.
The measurement of the expansion of the universe was what gave rise to the big bang theory and it's predictions.
Answer:
Camilla
Explanation:
I got it right on edge. :)
