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Renee99 Group Title

A drop of water placed on a smooth, dry surface will form a dome-shaped droplet instead of flowing outward in different directions. Which of these best explains this observation? A. The bonds between hydrogen and oxygen atoms are very strong. <<My Answer B. The electrons in the atoms attract the electrons in the other atoms. C. Water molecules at the surface experience fewer hydrogen bonds than water molecules within the liquid. D. Water molecules near the surface produce more buoyant force than water molecules within the liquid.

  • 2 years ago
  • 2 years ago

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  1. Renee99 Group Title
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    I think the answer is A, is that correct?

    • 2 years ago
  2. karan.singh Group Title
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    i think renee u r wrong...

    • 2 years ago
  3. karan.singh Group Title
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    ya its right ..a option is correct u r right...according to http://answers.yahoo.com/question/index?qid=20100706102709AAqiYmG

    • 2 years ago
  4. Renee99 Group Title
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    Well, My second choice was D...

    • 2 years ago
  5. Renee99 Group Title
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    ???

    • 2 years ago
  6. karan.singh Group Title
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    i don't know the reason

    • 2 years ago
  7. ash2326 Group Title
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    Nope a is not correct, it's D. I'm thinking of a proper explanation

    • 2 years ago
  8. karan.singh Group Title
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    ash can u explain it..

    • 2 years ago
  9. DLS Group Title
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    It is due to surface tension,they have to occupy minimum area,that is related with buoyant force,hence D. A,C&B are potinless options.

    • 2 years ago
  10. experimentX Group Title
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    the cohesive force is stronger than adhesive force .... the intermolecular bond between water molecule is stronger than intermolecular bond between surface and water.

    • 2 years ago
  11. ash2326 Group Title
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    On a waxy surface such as a leaf, Water adheres weakly to leaf and strongly to itself, so water clusters into drops. Surface tension gives them their near-spherical shape, because a sphere has the smallest possible surface area to volume ratio. Source- http://en.wikipedia.org/wiki/Surface_tension

    • 2 years ago
  12. Renee99 Group Title
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    Ahhh, okay. I gotcha! :)

    • 2 years ago
  13. Renee99 Group Title
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    Thanks u guys!

    • 2 years ago
  14. karan.singh Group Title
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    ok. concept of surface tension

    • 2 years ago
  15. Renee99 Group Title
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    I have another quick question... A scientist adds heat to each of the following substances. Which will probably absorb the most heat before its temperature changes significantly? 50 g of solid copper 50 g of solid iron 50 g of liquid water<<My answer 50 g of sand

    • 2 years ago
  16. experimentX Group Title
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    if A had talked about hydrogen bond, i would have gone for A.

    • 2 years ago
  17. DLS Group Title
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    Post seperately

    • 2 years ago
  18. Renee99 Group Title
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    okay, will do

    • 2 years ago
  19. DLS Group Title
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    hydrogen bonds are merely simple attractions,you cant relate them with shape of a molecule

    • 2 years ago
  20. Renee99 Group Title
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    thanks again everyone!

    • 2 years ago
  21. experimentX Group Title
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    surfaces matter .. for some surface the water molecule does not form dome ... while for some surfaces forms smaller dome.

    • 2 years ago
  22. DLS Group Title
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    and yes thhe answer to your second question is water,since it has thehighest specific heat capacity

    • 2 years ago
  23. Renee99 Group Title
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    http://openstudy.com/study#/updates/507ee9efe4b0599919843e2f

    • 2 years ago
  24. Renee99 Group Title
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    ohh thanks :)

    • 2 years ago
  25. Renee99 Group Title
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    u don't have to follow the link then...

    • 2 years ago
  26. hotdog97 Group Title
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    did you get both answer right ?

    • 6 months ago
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