Question

Students want to conduct a new investigation using a larger bag of water. Using Table 1,

predict the weight of 300 grams of water after 72 hours.
Complete the sentences by choosing the correct answers from the drop-down menus.
In the new investigation, the weight of water is predicted to be
Vgrams after 72 hours. This demonstrates that
in a system over time.

Answer 1

In the new investigation, the weight of water is predicted to be 360 grams after 72 hours. This demonstrates that mass is conserved in a system over time.

Step-by-step explanation:

According to Table 1, the weight of 100 grams of water after 72 hours is 107 grams. Therefore, the weight of 300 grams of water after 72 hours can be calculated by multiplying the weight gained by 3 (since 300 g is three times 100 g).Weight gained = 107 g - 100 g = 7 g

Weight gained for 300 g of water = 7 g x 3 = 21 g

Weight of 300 g of water after 72 hours = 300 g + 21 g = 321 gThis demonstrates that water gains weight in a closed system over time, possibly due to the absorption of dissolved gases or minerals from the container.