Tin Aluminum Appearance: shiny and silver Appearance: shiny and silver State at room temperature: solid State at room temperature: solid Density: 7.31 g/cm3 Density: 2.7 g/cm3 Melting point: 231.93°C Melting point: 660.32°C Conducts electricity Conducts electricity Based on the information in the chart, what is the best way to tell samples of tin and aluminum apart? O A. Test their electrical conductivity. O B. Determine their state at room temperature. O C. Measure their densities. O D. Look at their appearances. SUBMIT

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.