Answer:
Because the kind of compounfds that you try to determine using paper chromatography (organic compounds) are usually not soluble in water. Furthermore, water could react chemically with some of this compounds, because it's a very reactive molecule. You need organic solvents that are mostly inert.
Mean- 2
median- 2
mode- 1&2
range- 3
Answer:
3 is the slope
Step-by-step explanation:
The answer is 2. This is because 2 = 4% of 50.
You can think of it like this:
4 is 4% of 100.
50 is half of 100.
Therefore, 4% of 50 is HALF of 4% of 100.
4 divided by 2 = 2
point J (1, -3.5)
2 miles west = to the left of coordinate x 2 points
= 1-2 = -1
coordinates of the station then (-1, -3,5)
