Which statement is true? A.
A molecule having a covalent bond can be ionic.
B.
A molecule having a covalent bond is always polar.
C.
A molecule having a covalent bond may be polar or nonpolar.
D.
A molecule having a covalent bond is always nonpolar.

What happens to isotopes that are unstable?

Consider this initial-rate data at a certain temperature for the reaction described by

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.