CHEM 1201 : Fall 2012 Exam 2 With Answers 2
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(note: in the fall 2013, the exam will be only 50 minutes, the number of questions will be 20) All types of calculators are permitted in this examination. 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. Which ones qualify as strong electrolytes: (i) and (v) only. Ca3(po4)2(s) + 6 h2o(l: 2 h3po4(aq) + 3 ca(oh)2(aq) ! Ca3(po4)2(s) + 6 h2o(l: 2 h+(aq) + ca2+(aq) + 2 oh (aq) ! Ca2+(aq) + 2 h2o(l: 2 h3po4(aq) + 3 ca2+(aq) + 6 oh (aq) ! Ca3(po4)2(s) + 6 h2o(l: 6 h+(aq) + 6 oh (aq) ! H2o(l: which of the following compounds: hx, hy or hz best represents an aqueous solution of a strong acid, none, hx only, hy only, hz only, hx and hz.
