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8 Cards in this Set
- Front
- Back
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Why is water a polar molecule? |
because the hydrogen atoms are slightly positive where the oxygen molecules are slightly negative. This is why the one molecule has two different charges at different point in the molecule. This makes it polar. |
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What are differences between polar & non-polar? |
Polar: - soluble in water Non-polar: - insoluble in water |
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Explain the cohesive properties in water? |
- Water molecules are cohesive, they stick together because of hydrogen bonds - cohesion causes water to form drops - makes water tension (some organisms can walk on water) -water forms droplets -water can move as a column |
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Explain the adhesive properties of water? |
- Water is attracted with other molecules because it forms hydrogen bonds with other polar molecules |
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Explain solvent properties of water? |
- Other substances dissolve in water because of waters dipolar nature allows it to surround other charges molecules and prevent them from clumping together |
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Explain the thermal properties of water? |
- Water has the highest heat capacity of all liquids , so it takes a lot of energy before it will change temperature so large bodies of water maintain a stable temperature -water has a high boiling point because a lot of energy is needed to break hydrogen bonds -lots of energy needed to transform form liquid to gas phase |
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Are amino acids soluble in water? |
yes because they are polar |
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Explain solubility between hydrophilic and hydrophobic molecules? |
Hydrophilic: soluble in water, dissolves in water, polar Hydrophobic: insoluble in water, does not dissolve in water, non-polar |
