How many covalent bonds can nitrogen have?
a.0
b.1
c.2
d.3

Which term best describes the phrase “something that happens”?

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth’s center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

What are the theoretical properties of a gas at a temperature of 0 kelvin?