CHEM 1201 : Fall 2010 Exam 2 With Answers
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Encode your answers on the scantron sheet with soft pencil. A periodic table is provided on the last page. Turn in the scantron to the exam proctor. Encode 1 under grade or education on the scantron sheet: when a reaction between solutions of cd(no3)2 and na2s takes place, the identity of the precipitate is and ions that remain in solution are. (aq) and s2 (aq: cdna2(s); no3, s(no3)2(s); na+(aq) and cd2+(aq, cd2s3(s); na+(aq) and no3, cds(s); na+(aq) and no3. (aq: nonsense, no precipitate will form, all ions will remain in solution! Aqueous solutions of three different substances, ax, ay, and az, are represented by the three diagrams below. (g) + 2 br (aq) 2 cl (aq) + br2. Consider a reaction between a solid chromium(iii) hydroxide and nitric acid. 5: the emission spectrum of a hydrogen atom consists of only certain wavelengths of light.
