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Tju [1.3M]
3 years ago
5

Samira has two pens. She wants to know which pen was used to write a note. She labels her pens A and B. She puts a sample of ink

from each pen onto some chromatography paper. Then she puts a sample of the ink from the note onto the chromatography paper.
Chemistry
1 answer:
Ann [662]3 years ago
8 0

Answer:

b

Explanation:

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