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Water Properties & Hydrogen Bonding
AP Biology · Unit 1 Chemistry of Life
Learning Objectives
Water is polar: O is partially negative (δ⁻), H is partially positive (δ⁺)
Hydrogen bonding between molecules causes cohesion and adhesion
Temperature (avg kinetic energy) breaks and forms H-bonds
Solvent properties: hydration shells around ions
Tags
hydrogen bond
polarity
cohesion
solvent
AP Biology
Temperature (Kinetic Energy)
30°C
Number of H₂O Molecules
15
Simulate Solute Addition
Pure Water
Add NaCl (Salt)
Observation Metrics
State of Matter
Liquid
Active H-Bonds
0
Avg Speed
0
At standard temperature, water molecules form a fluid network of hydrogen bonds (dashed lines) breaking and reforming continuously.