CHEM 1110 Midterm: Chemistry 1110 2016 Spring- Test 4a
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Put your name, test version, and all your answers on the scantron and submit the scantron for grading. Do not wait until the end of the test to transfer your answers. Choose the best answer from the options given, and record your final answer on your scantron. What is the process in which molecules undergo a phase change directly from the solid phase to the gas phase: sublimation, condensation, deposition, freezing, melting. Which of the following is a weak acid: hcl, hf, hbr, hno3, h2so4. If aqueous solutions of ammonium sulfide and copper(ii) nitrate are mixed, which insoluble precipitate is formed: cu2s, nh4(no3)2, nh4no3, cuso4, cus. If aqueous solutions of na2co3 and bacl2 are mixed, which insoluble precipitate is formed: ba2co3, baco3, nacl2, bao, nacl. Based on the solubility rules, which of these processes will occur if solutions of cuso4(aq) and bacl2(aq) are mixed: no precipitate will form.
