Which of the following statements is correct?
a)the phase change from liquid to gas is exothermic.
substance with a low boiling point would be expected to have a relatively low vapor pressure at a low temperature.
b) liquids boil at lower than normal temperatures in death valley, since it is below sea level.
c)when a substance condenses, heat energy is given off.
d)the phase change from solid to liquid is exothermic.

Where are each of the three particles located within the atom?

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.

Which statement best describes the flow of energy in this scenario