How does the composition of a water molecule affect its charge?

a) it makes the molecule nonpolar

b) it makes the molecule a positive ion

c) it makes the molecule polar

d) it makes the molecule a negative ion

C) it makes the molecule polar.

The water molecule affects its charge by making it uneven. In the combination of hydrogen and oxygen, which makes up water, the oxygen atom has a slight negative charge and the hydrogen atoms have a slight positive charge. This gives the molecule a neutral charge as a whole, but it also means that water is a polar molecule.

C. Water is a polar molecule.