The Structure of Water (1961)

The video explains the unique properties of water (H2O) compared to other substances like benzene, particularly focusing on density, expansion, and contraction with temperature changes. Ice floats on water because it is less dense, a behavior not typical for most substances. As water is heated, it contracts until it reaches 4°C, where it begins to expand again. The video highlights how hydrogen bonding in water leads to its unusual behavior, including its expansion when freezing, which causes ice to be less dense than liquid water. This bonding also contributes to water’s surface tension and cohesion.

Keywords
water, H2O, ice, density, expansion, contraction, temperature, hydrogen bonding, surface tension, benzene

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