When a solid is heated, what happens to the molecules? a. The molecular attractions between molecules increase until they are a solid rigid shape.
b. The molecules start to change shape immediately and are destroyed by the heat.
c. The molecules start bouncing around faster and faster, causing more frequent collisions.
d. The molecules repel each other more and push away from each other until they are no longer together.
e. The molecules vibrate faster and faster until their attractive forces are broken by their movement.

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an 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.

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work