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16 Cards in this Set
- Front
- Back
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Is water polar or non polar? |
Polar |
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What are the four emergent properties of water? |
1. Cohesive behaviour 2. Ability to moderate temperature 3. Expansion upon freezing 4. Versatility as a solvent |
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What is cohesion? |
Hydrogen bonds hold water molecules together Helps transport water against gravity |
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What is adhesion? |
Attraction between different substances and compares with cohesion |
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What happen when heat is absorbed? |
It is absorbed to break bonds Most of the heat is used to disrupt H bonds before the water molecules can begin moving faster |
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What happens to heat when bonds form? |
Heat is released |
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What is the heat of vaporization? |
The heat a liquid must absorb to be converted to gas |
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What is the heat of vaporization? |
The heat a liquid must absorb to be converted to gas |
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What is evaporative cooling? |
As a liquid evaporates, its remaining surface cools. Hottest molecules of water with the most kinetic energy leave as a gas |
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What is a hydration shell? |
When an ionic compound is dissolved in water. Each ion is surrounded by a sphere of water molecule |
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What is a hydroxide ion? |
The molecule that lost the protein |
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What is a hydroxide ion? |
The molecule that lost the protein |
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What is a hydronium ion? |
The molecule with the extra protein is now a hydronium ion |
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What is an acid? |
Substance that increases the Hydrogen concentration of a solution |
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What is an acid? |
Substance that increases the Hydrogen concentration of a solution |
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What is a base? |
A substance that reduces the hydrogen concentration of a solution |
