Chemistry 2202 Practice Exam

Topics: Sodium chloride, Chlorine, Ion, Chemical bond, Atom, Ionic bond / Pages: 8 (1989 words) / Published: Nov 5th, 2012
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Chemistry 2202
FINAL EXAMINATION June 2010
Value: 100%

General Instructions
This examination consists of two parts. Both parts are contained in this booklet and further general instructions are provided on appropriate pages. Part I – Multiple Choice (40%) Select the letter of the correct response from those provided. EITHER shade the letter on your computer scorable card OR place the letter in the blank provided on your Multiple Choice Answer Sheet, whichever format is being used by your school for this exam. Do ALL questions in this section. Part II – Constructed Response (60%) Answer ALL questions fully and concisely in the space provided.

Student Checklist
The items below are your responsibility. Please ensure that they are completed. Write your name and teacher’s name on the top of this page. Write your name, teacher’s name, course name and number on the Part I answer sheet. Check the exam to see that there are no missing pages. ALL MATERIALS MUST BE PASSED IN WITH THIS EXAM. Use your time wisely. Good luck!

Part I- Multiple Choice Total Value: 40% 1. Carbon-12 and carbon-14 are isotopes of carbon. How are these isotopes different? (A) (B) (C) (D) number of electrons number of neutrons number of photons number of protons

2.

How many atoms are in 1.00 mol of beryllium? (A) (B) (C) (D) 9.01 22.4 6.02 x 1023 1.20 x 1047

3.

Which isotope has 52 protons and 75 neutrons? (A) (B) (C) (D) Rhenium - 75 Rhenium - 127 Tellurium - 52 Tellurium - 127

4.

What is the molar mass of Al2(SO4)3? (A) (B) (C) (D) 214.17 g/mol 278.03 g/mol 342.17 g/mol 450.09 g/mol

5.

What is the percent composition of water in Plaster of Paris, (CaSO4)2 • H2O? (A) (B) (C) (D) 6.207% 13.81% 33.09% 93.79% Page 1

Chemistry 2202 June 2010

6.

Gas filled glass tubes are used as lighted store

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