CHM1045
Prof. West
Unit 1 Quiz questions and answer choices
(Please choose your answers in the link below)
15 questions, 1 point each
Viewing the questions and answer choices does not count as an attempt. (Only choosing the answers
does.) Please print the question and answer choices or have them opened in another window while
selecting the answers.
You may need a Periodic Table (included with your textbook), a scientific calculator, and a notebook to
complete this quiz.
1) Which of the following is an element?
A) Carbon dioxide
B) Sodium
C) Ammonia
D) Sand
2) Which of the following is a homogeneous mixture?
A) A cup of black coffee
B) Salt — sodium chloride
C) Iron filings and sulfur
D) Oil and vinegar salad dressing
3) What is the correct symbol for the element copper?
A) Ca
B) Cr
C) Co
D) Cu
4) Which one of these micronutrients is found in hemoglobin?
A) Cu
B) Zn
C) Fe
D) F
5) Which one of these micronutrients has an important role in teeth and bones?
A) Mn
B) I
C) Se
D) F
6) Which of the following combinations represent compounds rather than elements?
I. O2
II. CCl4
III. S8
IV. H2O
A) I + II
B) III + IV
C) I + III
D) II + IV
7) An example of a chemical reaction is:
A) iron forms rust when exposed to oxygen in air
B) water turns to steam at 100°C
C) zinc reacts with hydrochloric acid to produce hydrogen gas
D) both A and C
8) Which of the following statements bests describes a liquid?
A) Definite shape and volume
B) Indefinite shape and volume
C) Indefinite shape but definite volume
D) Definite shape but indefinite volume
9) Identify the correct ordering of attractions (strongest to weakest) among particles in the three
states of matter.
A) Solid < liquid < gas
B) Solid > liquid > gas
C) Gas < solid < liquid
D) Solid < gas < liquid
10) What type of reaction is illustrated in this diagram?
A) Synthesis
B) Decomposition
C) Single displacement
D) Double displacement
11) What type of reaction is illustrated in this diagram?
A) Synthesis
B) Decomposition
C) Single displacement
D) Double displacement
12) A piece of zinc placed in hydrochloric acid results in a fierce effervescence and the zinc
eventually dissolves, yielding a solution of zinc chloride. A glowing splint gives a "popping"
sound, indicating the presence of hydrogen gas. What type of reaction is it?
A) Synthesis
B) Decomposition
C) Single displacement
D) Double displacement
13) In sublimation, the ________ state is turned into the ________ state.
A) solid, gas
B) gas, solid
C) liquid, solid
D) gas, liquid
14) In condensation, the ________ state is turned into the ________ state.
A) solid, gas
B) gas, solid
C) liquid, solid
D) gas, liquid
15) The statement, "In a chemical reaction, matter is neither created nor destroyed" is called
A) The Law of Conservation of Mass.
B) Dalton's Atomic Theory.
C) The Scientific Method.
D) The Law of Multiple Proportions.