Hydrogen bonds cause water to expand when it freezes.
Hydrogen bonds hydrogen bonds are primarily electrostatic in origin.
Electrostatic causes water to expand.
What causes water to expand?
Options:
[1] evaporation
[2] Condensation
[3] Generating heat
[4] electrostatic
[5] friction
[6] heat energy
[7] heat produced
[8] wind and erosion