Astudent needs to determine the volume occupied by a gas in a 125 ml flask using the experimental setup described in the procedure. the student measures the volume of the flask to be 157 ml to the top of the flask. the student measures the volume of the flask with a stopper in it to be 140 ml. the student performs the experiment by reacting the strip of magnesium with 5 ml of hcl solution. what is the volume of the flask occupied by the hydrogen gas?

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

Which three statements represent the benefits of performing experiments using computer simulations?