2010Exam1key - Name: _ 4. Consider the compound,...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: ______________________________ CHEM 1211: Principles of Chemistry I Hour Exam I September 17, 2010 BE SURE THAT NUMERICAL ANSWERS ARE GIVEN TO THE PROPER NUMBER OF SIGNIFICANT FIGURES AND INCLUDE UNITS!!! SHOW YOUR WORK TO OBTAIN PARTIAL CREDIT!!! PUT ANSWERS IN THE SPACE PROVIDED!!! GOOD LUCK!!! 1. Fill in the blanks in the following table for each compound (1 point/blank). Include the charges on the cations and anions for ionic compounds. If the compound is molecular, write "N/A" under the cation and anion columns. IUPAC Name Cation Anion Formula of Compound Example: Magnesium nitrate Mg 2+ NO 3 ¯ Mg(NO 3 ) 2 Example: Dihydrogen oxide N/A N/A H 2 O a) Aluminum nitride Al 3+ N 3- AlN b) Rhodium(III) sulfate Rh 3+ SO 4 2- Rh 2 (SO 4 ) 3 c) Dinitrogen trioxide N/A N/A N 2 O 3 d) Platinum(IV) chloride Pt 4+ Cl¯ PtCl 4 e) Calcium perchlorate Ca 2+ ClO 4 ¯ Ca(ClO 4 ) 2 f) Xenon octafluoride N/A N/A XeF 8 2. Fill in the missing information in the table below (2 points/space): Isotopic Symbol # of protons # of neutrons # of electrons 16 O 8 8 8 97 Tc 43 54 43 27 Si 4- 14 13 18 60 Ni 2+
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online