Does Air Molecules Escape From A Punctured Tire

Complete the following:

1. What was the change in the level of molasses in 10 minutes?_

2. What was the change in the level of molasses in 30 minutes?_

3. How do you explain this change? _

4. Briefly define osmosis.

Critical Thinking Application v,

Indicate which of the following involves osmosis by answering yes or no.

1. A fresh potato is peeled, weighed, and soaked in a strong salt solution. The next day it is discovered that the potato has lost weight._

2. Garden grass wilts after being exposed to dry chemical fertilizer._

3. Air molecules escape from a punctured tire as a result of high pressure inside._

4. Plant seeds soaked in water swell and become several times as large as before soaking._

5. When the bulb of a thistle tube filled with water is sealed by a selectively permeable membrane and submerged in a beaker of molasses, the water level in the tube falls._

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