Term
| What does water do when it freezes? |
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Definition
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Term
| What parts of a water molecule are magnetized? |
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Definition
| Oxygen (slightly negative), and hydrogen (slightly positive) |
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Term
| Why is a water molecule polarized? |
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Definition
| Uneven distribution of electrons |
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Term
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Definition
| Attraction between molecules of the same substance |
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Term
| Why is water's surface drawn inwards? |
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Definition
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Term
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Definition
| Attraction between molecules of different substances |
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Term
| Why does water's surface dip slightly in a glass container? |
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Definition
| Adhesion between the glass and water is stronger than cohesion between the water molecules |
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Term
| What is capillary action? |
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Definition
| When water rises (against gravity) due to adhesion |
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Term
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Definition
| Measurement system of concentrations of H+ ions, between 0 and 14, where 7 is pure water (neutral) |
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Term
| What do H+ and OH- stand for? |
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Definition
| Hydrogen ion, hydroxide ion |
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Term
| Each step in the pH scale is a factor of what? |
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Definition
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Term
| Where are acidic solutions located on the pH scale? |
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Definition
| Values that are below 7, since they have more H+ ions |
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Term
| Where are basic solutions located on the pH scale? |
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Definition
| Values above 7, since they have less H+ ions |
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Term
| What's the difference between and acid and a base? |
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Definition
| Acids have H+ ions, while bases have OH- ions |
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Term
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Definition
| A weak acid or base that reacts with strong acids or bases to prevent sharp pH fluctuations (*homeostasis!) |
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Term
| What is the pH of fluids in humans? |
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Definition
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Term
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Definition
| Substance dissolved in a solution |
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Term
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Definition
| Substance where solute is dissolved in, in a solution |
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Term
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Definition
| Mixtures of non-dissolved materials |
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