6 - 02 Hydrogen Bonds

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Last updated 5:44 PM on 6/5/26
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10 Terms

1
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Molecule

The smallest physical unit of an element or compound.

<p>The smallest physical unit of an element or compound.</p>
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Polarity

The uneven sharing of electrons in the water molecule, making the hydrogen end slightly positive and the oxygen end slightly negative.

<p>The uneven sharing of electrons in the water molecule, making the hydrogen end slightly positive and the oxygen end slightly negative.</p>
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Hydrogen Bond

A weak bond formed between water molecules due to water's polarity. The positive end of one water molecule is attracted to the negative end of another.

<p>A weak bond formed between water molecules due to water's polarity. The positive end of one water molecule is attracted to the negative end of another.</p>
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Cohesion

Water molecules 'stick together' due to hydrogen bonds.

<p>Water molecules 'stick together' due to hydrogen bonds.</p>
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Adhesion

Water molecules 'stick' to other molecules due to hydrogen bonds.

<p>Water molecules 'stick' to other molecules due to hydrogen bonds.</p>
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Surface Tension

A 'skin' on the surface of water due to cohesion.

<p>A 'skin' on the surface of water due to cohesion.</p>
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Capillary Action

The tendency of water to climb up small tubes due to adhesion and cohesion.

<p>The tendency of water to climb up small tubes due to adhesion and cohesion.</p>
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Meniscus

The curve on the surface of water in a tube due to adhesion.

<p>The curve on the surface of water in a tube due to adhesion.</p>
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Density

Liquid water has a density of 1mg/cm3 but ice is 0.9mg/cm3. Ice floats on water because it is less dense.

<p>Liquid water has a density of 1mg/cm3 but ice is 0.9mg/cm3. Ice floats on water because it is less dense.</p>
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Specific Heat

The amount of energy needed to raise the temperature of a

substance. Water has a high specific heat, which means it takes a lot of energy to raise the temperature of water.

<p>The amount of energy needed to raise the temperature of a</p><p>substance. Water has a high specific heat, which means it takes a lot of energy to raise the temperature of water.</p>