A beaker is filled with 5.7 grams of Nitrogen gas in a fixed volume of 4 Liters. One of the valves opened and there remains only 3.8 grams of Nitrogen gas, what is the new volume of gas?
4.99 L
2.46 L
2.67 L
3.18 L

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

Which characteristics can be used to differentiate star systems? check all that apply.