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Addition to Review for CHEM 132 Mid-term Exam Colors of Free Ions in Solution The cations of the following Transition Metals: • Copper (Cu ): Blue 2+ • Cobalt (Co ): Pink/Red • Nickel (Ni ): Green • Iron (Fe ): Yellow—>Orange 3+ • Chromium (Cr ): Purple (the chloride was a very dark blue-green The following anions are colored because they contain a Transition Metal cation: 4 • Chromate (CrO ): yellow 2- 27 • Dichromate (Cr O ): orange Significant Figure Considerations in Math Calculations Addition and Subtraction Manipulations: • Maximum number of significant figures allowed in an answer which used addition and subtraction is dictated by the place of the least well-known piece of data involved in the addition or subtraction • Ex: Add: 32.092
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This note was uploaded on 10/05/2009 for the course CHEM 132 taught by Professor Jones during the Fall '08 term at Maryland.
- Fall '08