120.0 liters of a gas are prepared at a pressure of 300.0 mm Hg and a temperature of 100.0 °C. The gas is placed into a tank under high pressure. When the tank cools to 30.0 °C, the pressure of the gas is 30.0 mm Hg. What is the volume of the gas? A.674.8 L
B.774.8 L
C.874.8 L
D.974.8 L

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