Which pair of atoms will form a covalent molecule?
a) one atom of copper and two atoms of fluorine
b) one atom of sodium and one atom of fluorine
c) one atom of oxygen and one atom of iron
d) one atom of oxygen and two atoms of hydrogen

The heliocentric and the geocentric models of the solar system included these central principles

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy