how much cobalt-60 remains 15

  1. how much cobalt-60 remains 15 years after it is initially made?cobalt-60 has half life 5.27
    1. answers icon 0 answers
    2. adib asked by adib
    3. views icon 1,132 views
  2. Which characteristic of the element Cobalt (Co) is most closely related to its chemical reactivity?A. Cobalt's two valence
    1. answers icon 1 answer
    2. views icon 135 views
  3. Which of the following are negative consequences of cobalt mining in the Democratic Republic of Congo? Select the two correct
    1. answers icon 1 answer
    2. L asked by L
    3. views icon 60 views
  4. Which of the following are negative consequences of cobalt mining in the Democratic Republic of CongoSelect 2 answers Thousands
    1. answers icon 1 answer
    2. views icon 7 views
  5. What is the correct name for the ionic compound, CoBr2?? cobalt(III) bromide ? cobalt(II) dibromide ? cobalt bromide ?
    1. answers icon 1 answer
    2. emma asked by emma
    3. views icon 19 views
  6. Which of the following are negative consequences of cobalt mining in the Democratic Republic of Congo? Select the two correct
    1. answers icon 1 answer
    2. views icon 59 views
  7. Which of the following are negative consequences of cobalt mining in the Democratic Republic of Congo? Select the two correct
    1. answers icon 1 answer
    2. views icon 60 views
  8. A thermal neutron beam of intensity 1 to the power 11, neutrons/sec is directed for 2 days into a cavity in a block of cobalt
    1. answers icon 0 answers
    2. Ryan asked by Ryan
    3. views icon 442 views
  9. What is the correct name for the ionic compound, CoF3?? cobalt fluoride ? cobalt(II) fluoride ? cobalt(III) trifluoride ?
    1. answers icon 1 answer
    2. emma asked by emma
    3. views icon 20 views
  10. A student determines the cobalt(II) content of a solution by first precipitating it as cobalt(II) hydroxide, and then
    1. answers icon 6 answers
    2. jen asked by jen
    3. views icon 2,148 views