The formula for ammonia, NH3, represents a compound composed of
A) one atom of nickel and three atoms of hydrogen.
B) one atom of nitrogen and three atoms of hydrogen.
C) three atoms of nitrogen and three atoms of hydrogen.
D) three atoms of nitrogen and one atom of hydrogen.
E) one atom of nitrogen and three atoms of helium.
Question 2
Which of the following cations have the most positive charge?
A) cobaltic
B) ferric
C) stannic
D) mercuric