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  1. M

    Is there a way of changing picture size but not the resolution in photoshop?

    I made several pictures smaller in photoshop, but later found out that when i try to make them big again, they become blurry. How do i make them smaller but at the same time keep their resolution at the original? I am using Photoshop CS3 by the way.
  2. M

    example of potential energy due to condition?

    Potential energy is the energy of an obj. due to its position, condition or composition. I am familiar with the composition and position thing, but not with the condition. Can any1 give me some examples? Thanks.
  3. M

    How do i test for the completeness of reaction of: Cu(NO3)2 + NH3?

    What will the eq. be, and what will happen to them if i add them up in the laboratory? How about for Zn(NO3) +NH3? Thanks!
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