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Question: Give the chemical symbol or formula of:

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Drill problems seen = 1    Correct responses = 0    Give Up count = 0     Time = 0.00 min
  • Formulas are case sensitive: Co is cobalt and CO is carbon monoxide
  • Do not worry about subscripts or superscrips in formulae: H2O not H2O, and NH4+ not NH4+
  • Problems are plucked at random from a database, and there is always the chance that the same question will be asked twice in succession...
  • Any issues with the diagram or the correct response(s) to this problem?
  • If there is, please contact mark@meta-synthesis.com quoting the ID = 1139. Thanks!

© Mark R. Leach 1999 –


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