Sodium has an atomic number of 11 and has a net charge of 0. when sodium combines with chlorine, it has a net charge of +1. why? a) sodium loses a negative electron when forming chemical bonds. b) sodium gains a + proton when forming chemical bonds. c) sodium loses a + proton when forming chemical bonds. d) sodium shares a negative electron with chlorine.

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground,its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy