Water
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Questions and Answers

What property of water allows it to dissolve and dissociate many particles?

  • Cohesion
  • Adhesion
  • Polarity (correct)
  • High heat capacity
  • What property of water helps in the regulation of temperature in the environment and in living organisms?

  • High heat of vaporization
  • High heat capacity (correct)
  • Density
  • Capillary action
  • What is the cause of capillary action in water?

  • High heat capacity
  • Cohesion
  • Adhesion (correct)
  • Surface tension
  • What property of water allows it to protect cells from the effects of dangerous acids and bases?

    <p>Amphiprotic nature</p> Signup and view all the answers

    What property of water makes it less dense as a solid?

    <p>Hydrogen bonds</p> Signup and view all the answers

    What property of water allows it to dissolve polar substances?

    <p>Polarity</p> Signup and view all the answers

    What is the measure of the compactness of a substance?

    <p>Density</p> Signup and view all the answers

    What property of water is responsible for creating the smallest surface area possible?

    <p>Surface tension</p> Signup and view all the answers

    What property of water allows it to help regulate the temperature in the environment and in living organisms?

    <p>High heat capacity</p> Signup and view all the answers

    What property of water allows it to act as either an acid or a base?

    <p>Amphiprotic nature</p> Signup and view all the answers

    What property of water is responsible for the high boiling point of water?

    <p>Hydrogen bonds</p> Signup and view all the answers

    What property of water is responsible for the cooling effect during evaporation?

    <p>High heat of vaporization</p> Signup and view all the answers

    What is the percentage of water in the human body?

    <p>Over 70%</p> Signup and view all the answers

    What type of bonding does water molecules have?

    <p>Covalent bonding</p> Signup and view all the answers

    What causes the bent structure of the water molecule?

    <p>The two lone pairs of electrons on the oxygen atom</p> Signup and view all the answers

    What is the angle between the hydrogen atoms and the oxygen atom in a water molecule?

    <p>105 degrees</p> Signup and view all the answers

    What type of charge does the oxygen atom in a water molecule have?

    <p>Partial negative</p> Signup and view all the answers

    What type of forces attract polar molecules to one another?

    <p>Dipole-dipole forces</p> Signup and view all the answers

    Which form of water is solid?

    <p>Ice</p> Signup and view all the answers

    Which form of water is liquid?

    <p>Rain</p> Signup and view all the answers

    Which form of water is gas?

    <p>Steam or water vapor</p> Signup and view all the answers

    What is the composition of pure water in terms of color, taste, and odor?

    <p>Colorless, tasteless, and odorless</p> Signup and view all the answers

    How much of the Earth's surface is covered by water?

    <p>Two-thirds</p> Signup and view all the answers

    What makes water essential for life?

    <p>Its structure and properties</p> Signup and view all the answers

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