What is the pressure of a 6.022 g sample of CH4 gas that is stored in a 30.0 L container at 402 K?

A balloon filled with 2.50 moles of O2 gas occupies a volume of 1.2 L. When this balloon is placed in a bath of liquid nitrogen, the volume decreases to half its original volume.  Which statement below best describes what happened?

When ammonium nitrate (NH4NO3) dissolves in water, the process is endothermic (∆H=26.4 kJ/mol).  Despite being energetically unfavorable, NH4NO3 dissolves readily in water. Why?

Butane and 2-Methylpropane (pictured below) have the same molecular formula and are both nonpolar molecules. However, butane has the higher boiling point.  Which statement below best describes their difference in boiling points?

In which of the following species is the central atom sp3d-hybridized?

Which of the following assumptions is not consistent with Kinetic Molecular Theory (KMT)?

In the Lewis structures below, which bond angle is the smallest?

The benzene molecule (C6H6) can be represented as two equivalent resonance structures (A) and (B): Which statement below about benzene is false?

Which of these substances has the largest London Dispersion Forces?

A Real Gas will behave most like an Ideal Gas under which conditions?