A flexible container at an initial volume of 5.120 L contains 8.500 mol of gas.
More gas is then added to the container until it reaches a final volume of 18.10
L. Assuming the pressure and temperature of the gas remain constant,
calculate the total number of moles of gas in the container.

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Connect the whole numbers on the periodic table to indicate what they represent?