What is true of a sample of gas as temperature is increased? The particles move faster, and their average kinetic energy decreases.
The particles move faster, and their average kinetic energy increases.
The particles move slower, and their average kinetic energy decreases.
The particles move slower, and their average kinetic energy increases.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

In 2002, the rare earth elements mine in mountain pass, california was closed because