shell

  1. R

    Shell Dye Extraction

    Hello everyone, I am a student at Stanislaus State University and I have a grand experiment due by tomorrow morning! My partner and I have been researching on how to extract dye from mussel seashells but to no avail. What we do know: we need to use either vinegar or hcl to dissolve the caco3...
  2. R

    shell dye extraction!!!

    Hello everyone, I am a student at Stanislaus State University and I have a grand experiment due by tomorrow morning! My partner and I have been researching on how to extract dye from mussel seashells but to no avail. What we do know: we need to use either vinegar or hcl to dissolve the caco3...
  3. L

    Orbital (shell) question

    A hydrogen atom with an electron in the first shell (n=1) absorbs ultraviolet light with a wavelength of 1.03 x 10^-7 m. To what shell does the electron jump? The answer is the 3rd shell. However, I'm not sure how to work it out.