Question

b. describe the symmetries of the water molecule. select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice.
a. the water molecule has line(s) of symmetry and does not have rotational symmetry.
b. the water molecule has the following rotational symmetry(ies) °, point symmetry, and does not have reflectional symmetry. (use a comma to separate answers as needed. do not include the degree symbol in your answer.)
c. the water molecule has line(s) of symmetry, point symmetry, and the following rotational symmetry(ies) ° (use a comma to separate answers as needed. do not include the degree symbol in your answer.)
d. the water molecule does not have any symmetry

Explanation:

The water molecule ($H_2O$) has a bent - shape. It has 2 lines of symmetry. One line passes through the oxygen atom and bisects the $H - O - H$ angle, and the other is perpendicular to the first one and also passes through the oxygen atom. It does not have point symmetry. Its rotational symmetries are 0° (trivial rotation) and 180°.

Answer:

C. The water molecule has 2 line(s) of symmetry, no point symmetry, and the following rotational symmetry(ies) 0,180