A container with 155 cm3 of chlorine gas exerts a pressure of 22.5 kPa. What will be the pressure if the volume is changed to 90.0 cm3, assuming the same temperature.

Can someone me with questions 15 to 17 plz.

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.