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When a water molecule sticks onto the side of a test tube, this is an example of

User MirekE
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Answer:

A convex meniscus occurs when the molecules have a stronger attraction to each other than to the container, as with mercury and glass. A flat meniscus occurs when water in some types of plastic tubes; tubes made out of material that water does not stick to.

Step-by-step explanation:

User Zyad Sherif
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