Answer to the questions given below:
 
During an activity, a Sonia fills one syringe with air and another with water. After blocking both openings, she pushes the plungers with equal force. The air-filled syringe shows a noticeable decrease in volume, while the water-filled syringe shows almost no change.
 
i. Which difference in particle arrangement explains the observation?
 
ii. If a solid metal block were used instead of water, what would be expected?