Water

• What is the chemical formula of water?

  H₂O
• What atoms make up a water molecule?

  One oxygen and two hydrogen atoms
• What causes the polarity of water molecules?

  Unequal sharing of electrons between atoms
• What charge does the oxygen atom in water have?

  Slight negative charge
• What charge do the hydrogen atoms in water have?

  Slight positive charge
• Why is water considered a polar molecule?

  It has partial positive and negative charges
• What is the significance of water in the search for extraterrestrial life?

  It is essential for living organisms
• What does the term "metabolite" refer to?

  A substance involved in metabolism
• What is a hydrogen bond?

  A weak bond between polar molecules
• What does it mean that water has a high latent heat of vaporization?

  It requires a lot of energy to evaporate
• Why does water have a high specific heat capacity?

  It can absorb a lot of heat without changing temperature
• What is cohesion in the context of water molecules?

  Attraction between water molecules
• Why is cohesion important for plants?

  It helps transport water through plant tissues
• What are the key properties of water that are important for biological systems?

  • Polarity: leads to hydrogen bonding
  • Cohesion: water molecules stick together
  • High specific heat capacity: stabilizes temperature
  • High latent heat of vaporization: regulates temperature
  • Solvent properties: dissolves many substances