Is the ink a pure substance or a mixture?

Answer 1

Although this question is vague (what is a pure substance) I suspect that the best answer is, "No". To prove this take a black felt tip or roller ball pen (not an oil based ball point pen) and draw a line on a paper towel. Now wet the paper towel near the ink mark so that the water is absorbed and is drawn through the towel and across the ink. You should see the ink diffuse with the water and see the various color in the ink diffuse at different rates. This is called chromatography. You should see ink colors of blue, purple, red. If you Google for chromatography you'll find a variety of simple home experiments.

Answer 2

It is homogeneous. It is NOT heterogeneous, because it looks like it has the same composure thoughout. Although, it is NOT a pure substance because it has different particles within it. It is not made naturally, and it has different particles in it, for example: It can be made with powder and water, which would mean it has powder and water particles, and it cannot be defined as a pure substance. Hope this was helpful. :)

Answer 3

yes ,homogeneous mixture

Answer 4

Ink is a mixture.

Answer 5

yes