CHEM 1A03 Midterm: Midterm 1 Notes 2015
16 Oct 2018
School
Department
Course
Professor
.Name: ____________________ Student number: ______________
Chemistry 1A03
Test 1
Oct 2, 2015
McMaster University
VERSION 1
Instructors: D. Brock, G. Goward, A. Hitchcock, L. Davis
Duration: 90 minutes
This test contains 16 numbered pages printed on both sides. There are 20 multiple-choice questions
appearing on pages numbered 3 to 12. Pages 13 and 14 are extra space for rough work. Page 15
includes some useful data and equations, and there is a periodic table on page 16. You may tear off
the last page to view the periodic table and the data provided.
You must enter your name and student number on this question sheet, as well as on the
answer sheet. Your invigilator will be checking your student card for identification.
You are responsible for ensuring that your copy of the question paper is complete. Bring any
discrepancy to the attention of your invigilator.
All questions are worth 2 marks - the total marks available are 40. There is no penalty for incorrect
answers.
BE SURE TO ENTER THE CORRECT VERSION OF YOUR TEST (shown near the top of
page 1), IN THE SPACE PROVIDED ON THE ANSWER SHEET.
ANSWER ALL QUESTIONS ON THE ANSWER SHEET, IN PENCIL.
Instructions for entering multiple-choice answers are given on page 2.
SELECT ONE AND ONLY ONE ANSWER FOR EACH QUESTION from the answers (A)
through (E). No work written on the question sheets will be marked. The question sheets may be
collected and reviewed in cases of suspected academic dishonesty.
Academic dishonesty may include, among other actions, communication of any kind (verbal,
visual, etc.) between students, sharing of materials between students, copying or looking at other
students’ work. If you have a problem please ask the invigilator to deal with it for you. Do not make
contact with other students directly. Try to keep your eyes on your own paper – looking around the
room may be interpreted as an attempt to copy.
Only Casio FX 991 electronic calculators may be used; but they must NOT be transferred between
students. Use of any aids other than those provided, is not allowed.
Page 1 of 16 Version # 1 Continued on next page Copyright May 2015, Department of
Chemistry and Chemical Biology, McMaster University
Name: ____________________ Student number: ______________
OMR EXAMINATION – STUDENT INSTRUCTIONS
NOTE: IT IS YOUR RESPONSIBILITY TO ENSURE THAT THE ANSWER SHEET IS
PROPERLY COMPLETED: YOUT EXAMINIATION RESULT DEPENDS UPON
PROPER ATTENTION TO THESE INSTRUCTIONS.
The scanner, which reads the sheets, senses the bubble shaded areas by their non-reflection of light.
A heavy mark must be made, completely filling the circular bubble, with an HB pencil. Marks
made with a pen will NOT be sensed. Erasures must be thorough or the scanner will still sense a
mark. Do NOT use correction fluid on the sheets. Do NOT put any unnecessary marks or writing
on the sheet.
1. On SIDE 1 (red side) of the form, in the top box, in pen, print your student number, name,
course name, and the date in the spaces provided. Then you MUST write your signature, in the
space marked SIGNATURE.
2. In the second box, with a pencil, mark your student number in the space provided. If your
student number does NOT begin with a 4, put “00” before your student number. Then fill in the
corresponding bubble numbers underneath.
3. Do NOT put in a leading zero when bubbling in your exam version number.
4. Answers: mark only ONE choice from the alternatives (A,B,C,D,E) provided for each question.
The question number is to the left of the bubbles. Make sure that the number of the question on
the scan sheet is the same as the number on the test paper.
5. Pay particular attention to the marking directions on the form.
6. Begin answering the question using the first set of bubbles, marked “1”.
Version number
Enter your
answer to
Question #1
here
Page 2 of 16 Version # 1 Continued on next page Copyright October 2015, Department of
Chemistry and Chemical Biology, McMaster University
Name: ____________________ Student number: ______________
1. What is the atomic number of sodium?
A) 23
B) 32
C) 11
D) 12
E) 16
2. The manufacture of pure silicon used in solar cells is described by the unbalanced
reaction below. If 0.275 mol of pure SiCl4(l) are reacted with 9.02 g of Mg(s), what is
the mass (in grams) of silicon produced?
SiCl4(l) + Mg(s) → Si(s) + MgCl2(s)
A) 6.78
B) 5.21
C) 9.27
D) 4.91
E) 8.62
Page 3 of 16 Version # 1 Continued on next page Copyright October 2015, Department of
Chemistry and Chemical Biology, McMaster University
35
CHEM 1A03 Full Course Notes
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