What structural formula represents 4 electrons shared between two atoms

a.0=0

b. s8

c. p4

d. n=n

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change?

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?