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Exam (elaborations)

IB Biology – Water Study Guide Test.

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  • Ib biology
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  • Ib Biology

IB Biology – Water Study Guide Test. Polar molecule - CORRECT ANSWER molecule with regions of positive and negative charge Oxygen Atom (in water) - CORRECT ANSWER region of a water molecule that is negatively charged Hydrogen Atoms (in water) - CORRECT ANSWER regions of a water molecul...

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  • September 18, 2024
  • 2
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Ib biology
  • Ib biology
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IB Biology – Water Study Guide Test.

Polar molecule - CORRECT ANSWER molecule with regions of positive and negative charge



Oxygen Atom (in water) - CORRECT ANSWER region of a water molecule that is negatively charged



Hydrogen Atoms (in water) - CORRECT ANSWER regions of a water molecule that are positively charged



Capillary action - CORRECT ANSWER ability of water molecules to creep up surfaces due to their polarity
(e.g., up plant stems, meniscus in a graduated cylinder)



Hydrogen bonds - CORRECT ANSWER attractive force between a positively charged hydrogen of one
molecule and a negatively charged atom of a different molecule



Solution - CORRECT ANSWER mixture in which one or more substances (solutes) are distributed evenly
or dissolved in another substance (solvent)



Solvent - CORRECT ANSWER substance in which a solute is dissolved



Solute - CORRECT ANSWER substance being dissolved in a solvent



pH - CORRECT ANSWER scale used to measure of how acidic or basic a solution is; ranges from 0-14



Acid - CORRECT ANSWER substances with a pH less than 7; any substance that forms hydrogen ions (H+)
in water



Base - CORRECT ANSWER substances with a pH greater than 7; any substance that forms hydroxide ions
(OH-) in water

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