A. if a gas is compressed from 8 l to 2 l and the temperature remains constant, what happens to the pressure? b. a gas with a volume of 2 l is allowed to expand to a volume of 10 l. what happens to the pressure in the container if the temperature remains constant? c. the gas in a container has a pressure of 6 atm at 27 °c (300 °k). what will the pressure be if the temperature is lowered to -173 °c (100 °k)?

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

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water