Question

which statement is true about water molecules?
the hydrogen atoms do not share electrons.
the oxygen atom has a slight negative charge.
water molecules cannot dissolve many substances.
water molecules move randomly around each other.

Explanation:

In a water molecule ($H_2O$), hydrogen and oxygen share electrons in a covalent - bond. Oxygen is more electronegative than hydrogen, so it attracts the shared electrons more strongly, giving the oxygen atom a slight negative charge. Water is a universal solvent and can dissolve many substances. In the liquid state, water molecules move randomly around each other.

Answer:

B. The oxygen atom has a slight negative charge.