Podcast
Questions and Answers
What makes water a polar molecule?
What makes water a polar molecule?
- The greater electronegativity of the oxygen atom (correct)
- The greater electronegativity of the hydrogen atoms
- The lack of electronegativity in the water molecule
- The equal electronegativity of the oxygen and hydrogen atoms
What is responsible for the surface tension of water?
What is responsible for the surface tension of water?
- Cohesion due to hydrogen bonding (correct)
- The lack of electronegativity in the water molecule
- The presence of oxygen and hydrogen atoms
- Adhesion to other substances
Why does water rise in a narrow glass tube when lowered into a beaker of water?
Why does water rise in a narrow glass tube when lowered into a beaker of water?
- Adhesion to the glass surface (correct)
- The force of gravity pulling it downward
- Lack of gravity in the glass tube
- Cohesion due to hydrogen bonding
What characteristic of water allows insects to glide atop the surface instead of sinking?
What characteristic of water allows insects to glide atop the surface instead of sinking?
What is responsible for the polarity of the water molecule?
What is responsible for the polarity of the water molecule?
What causes water to adhere to any substance with which it can form hydrogen bonds?
What causes water to adhere to any substance with which it can form hydrogen bonds?
What is the primary reason for the high surface tension of water?
What is the primary reason for the high surface tension of water?
Why do insects glide atop the surface of water instead of sinking?
Why do insects glide atop the surface of water instead of sinking?
What causes the water to rise in a narrow glass tube when lowered into a beaker of water?
What causes the water to rise in a narrow glass tube when lowered into a beaker of water?
What characteristic of the water molecule makes it attracted to other polar molecules?
What characteristic of the water molecule makes it attracted to other polar molecules?
What is the primary reason for the cohesive property of water?
What is the primary reason for the cohesive property of water?
Why does an insect glide atop the surface of water instead of sinking?
Why does an insect glide atop the surface of water instead of sinking?
What causes the water to rise in a narrow glass tube above the level of the water in a beaker?
What causes the water to rise in a narrow glass tube above the level of the water in a beaker?
What characteristic of water allows it to be attracted to other polar molecules?
What characteristic of water allows it to be attracted to other polar molecules?
What is responsible for the high surface tension of water?
What is responsible for the high surface tension of water?
