Question

multiple - choice question
the water molecules in ice are bonded tightly and called a
crystal medallion and they molecules fly apart
crystal lattice and the molecules vibrate
diamond lattice and they vibrate

Explanation:

In ice, water - molecules are arranged in a regular, repeating pattern called a crystal lattice. The molecules are bonded tightly and can only vibrate in place due to the intermolecular forces holding them together. There is no such thing as a "crystal medallion" in this context, and ice has a crystal lattice structure, not a diamond lattice (diamond lattice is specific to carbon - based diamond structure).

Answer:

B. crystal lattice and the molecules vibrate