Chem 1a Practice Final Exam General Chemistry

9AM Practice Final Exam F2014 CHEM 1A - B.Kunkel There are a total of 50 questions on the exam (there are 54 questions on the practice exam). Each question is worth 4 points. You must show your work on the exam. We can evaluate your exam only if you have shown work. You must show your picture ID when you turn in your exam. PARSCORE FORM: Use a PENCIL 1) Write your name 2) Bubble in FORM A 3) Bubble in your PERM number (7 digits only, no extra numbers) INFORMATION PAGE: An information page is provided separately. No notes or books are allowed. INSTRUCTIONS: No hats allowed. No sharing of calculators. Cell Phones, iPods, headsets, etc. must be turned off and put away. ________________________________________________________________________________ 1. An element's most stable ion forms an ionic compound with fluorine having the formula XF3. If the X ion has 24 electrons, which of the following is element X? A) Sc B) Co C) Cr D) V E) none of the above 2. A sample of HOOCC6H4OH contains 0.6540 moles of hydrogen atoms. How many moles of carbon atoms are in the sample? A) 0.6543 moles B) 6.090 moles C) 7.015 moles D) 1.290