Several forms of electromagnetic waves are used in communication. which of these correctly pairs the type of em wave and its use in communication? all but one may apply.

What are similarities and differences of reflection, refraction, diffraction and absorption?

How would a small bar magnet be oriented when placed at position x?

Sodium chloride, nacl, is formed when a sodium atom transfers its electron to a chlorine atom. the difference in charge between the two atoms creates a(n) attraction that bonds them together.