When you draw a bow'across a violin string, which kind of wave is created in the air surrounding the string?
A. surface
B. electromagnetic
C. longitudinal
D. Transverse

Why is nh3 classified as a polar molecule

In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false

What is the most common form of matter in the universe