2.167*10^22 atoms of hydrogen
Supplementary angles add up to 180, so
6x+60+90 = 180 and solve for x
6x= 30
x=5
The two angles would be both 41 degrees.

x in this case would be 14 degrees.
Sodium is a metal, Chloride is a non-metal.
Right off the bat, you know that in order for both of these atoms to achieve a full valence shell that the metal has to lose electrons, and the non-metal has to gain them.
Therefore, you have the transfer of electrons in this bond in order to form ions.
Na+ and Cl-. This transfer of electrons in a bond is called an {{ Ionic Bond}}