I REALLY need help with this one... A weather balloon is filled with 60.0 L of hydrogen gas at sea level pressure (101.3 kPa). It then rises to 900 m above Earth’s surface. The atmosphere at this altitude is 90.6 kPa. What is the volume of the balloon at this altitude? Assume there is no change in temperature or amount of gas.

__can be defined as which velocity changes

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.