Name TA
Chemistry 103: PRACTICE Exam 1 Fall 2019
Directions: 110 points total
1. This exam consists of multiple choice and short answer questions, reference
constants, a solubility flow chart, and a periodic table. You may detach the
periodic table at the start of the exam. You may use a 3x5 inch note-card, ACT-
approved calculator, #2 pencil, and eraser/white-out. Remove all internet-
capable watches.
2. Print your name in the space at the top of this page NOW. Write your TA’s name.
3. SCANTRON: Fill in the bubbles with your name, student ID number, and
version number on your scantron sheet.
Note: Select “1” in the Special Code A space to indicate your version number.
4. Mark your answers to the multiple choice questions on the scantron sheet. Answer
the remaining short answer questions directly in the space provided on this exam.
Numerical answers must be reported with the correct significant figures and units to receive
full credit. Show all relevant work to receive full credit. Circle your final answer.
5. Complete the following exam by yourself. You will be given 50 minutes.
6. Turn in your notecard at the end of the exam.
SCORES:
Pages 1-6 (Scantron questions #1-16): /56 scantron total
Page 7 (#17): /14
Page 8 (#18): /16
Page 10 (#19a-d): /19
Page 10 (#19e): /5
/54 short answer total
/110 total
PRACTICE Exam 1: Page 1 of
, Name TA
Questions 1-16: Scantron portion (part 1). Carefully fill out your scantron and erase all
mistakes. Make sure you’ve marked your version. [3.5 point each]
1. Select the chemical process:
a. Grinding solid KBr into a fine powder.
b. Creating molten lithium chloride from its solid salt.
c. The corrosion of iron metal in air to form rust.
d. Water condensing on window
2. Select the false statement:
a. Precipitation reactions always (or almost always) produce an ionic compound.
b. Acid/base/neutralization reactions always (or almost always)
produce an ionic compound.
c. Oxidation-reduction reactions always (or almost always)
produce an ionic compound.
d. When dissolved in water, soluble ionic compounds always (or
almost always) conduct electricity.
3. Which of the following would have noticeably impacted the fraction of bombarding
particles that were deflected in Rutherford’s gold foil experiment?
a. Use of a specific isotope of gold instead of gold’s natural distribution.
b. Repeating the experiment three additional times to improve statistical analysis.
c. Performing the experiment in the morning.
d. Operating in a world in which atomic nuclei make up the majority of the atom’s
volume.
4. Write the atomic symbol for an isotope with 16 protons and 20 neutrons.
a. Sulfur-36
b. Sodium-20
c. Sodium-36
d. Sulfur-16
PRACTICE Exam 1: Page 2 of
Chemistry 103: PRACTICE Exam 1 Fall 2019
Directions: 110 points total
1. This exam consists of multiple choice and short answer questions, reference
constants, a solubility flow chart, and a periodic table. You may detach the
periodic table at the start of the exam. You may use a 3x5 inch note-card, ACT-
approved calculator, #2 pencil, and eraser/white-out. Remove all internet-
capable watches.
2. Print your name in the space at the top of this page NOW. Write your TA’s name.
3. SCANTRON: Fill in the bubbles with your name, student ID number, and
version number on your scantron sheet.
Note: Select “1” in the Special Code A space to indicate your version number.
4. Mark your answers to the multiple choice questions on the scantron sheet. Answer
the remaining short answer questions directly in the space provided on this exam.
Numerical answers must be reported with the correct significant figures and units to receive
full credit. Show all relevant work to receive full credit. Circle your final answer.
5. Complete the following exam by yourself. You will be given 50 minutes.
6. Turn in your notecard at the end of the exam.
SCORES:
Pages 1-6 (Scantron questions #1-16): /56 scantron total
Page 7 (#17): /14
Page 8 (#18): /16
Page 10 (#19a-d): /19
Page 10 (#19e): /5
/54 short answer total
/110 total
PRACTICE Exam 1: Page 1 of
, Name TA
Questions 1-16: Scantron portion (part 1). Carefully fill out your scantron and erase all
mistakes. Make sure you’ve marked your version. [3.5 point each]
1. Select the chemical process:
a. Grinding solid KBr into a fine powder.
b. Creating molten lithium chloride from its solid salt.
c. The corrosion of iron metal in air to form rust.
d. Water condensing on window
2. Select the false statement:
a. Precipitation reactions always (or almost always) produce an ionic compound.
b. Acid/base/neutralization reactions always (or almost always)
produce an ionic compound.
c. Oxidation-reduction reactions always (or almost always)
produce an ionic compound.
d. When dissolved in water, soluble ionic compounds always (or
almost always) conduct electricity.
3. Which of the following would have noticeably impacted the fraction of bombarding
particles that were deflected in Rutherford’s gold foil experiment?
a. Use of a specific isotope of gold instead of gold’s natural distribution.
b. Repeating the experiment three additional times to improve statistical analysis.
c. Performing the experiment in the morning.
d. Operating in a world in which atomic nuclei make up the majority of the atom’s
volume.
4. Write the atomic symbol for an isotope with 16 protons and 20 neutrons.
a. Sulfur-36
b. Sodium-20
c. Sodium-36
d. Sulfur-16
PRACTICE Exam 1: Page 2 of
