Foundations of College Chemistry 13th Edition Hein Arena Test Bank

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Chapter Three
Multiple Choice

1. All matter is composed of elements. Approximately how many elements are there?
A. 4
B. 10
C. 68
D. 100
Answer: D; Difficulty: easy; Reference: Section 3.1

2. The smallest particle of an element that can exist is called a(n)
A. atom.
B. ferrule.
C. neutron.
D. electron.
Answer: A; Difficulty: easy; Reference: Section 3.1

3. The smallest particle of an element that can enter into a chemical reaction is a(n)
A. atom.
B. neutron.
C. ferrule.
D. electron.
Answer: A; Difficulty: easy; Reference: Section 3.1

4. Most elements are rare. How many elements make up approximately 99% of the mass of the earth’s crust, oceans, and atmosphere?
A. 2
B. 4
C. 7
D. 10
Answer: D; Difficulty: easy; Reference: Section 3.2

5. The most abundant element in the earth’s crust, oceans, and atmosphere is
A. water.
B. hydrogen.
C. iron.
D. oxygen.
Answer: D; Difficulty: easy; Reference: Section 3.2
6. Which element is a liquid at room temperature?
A. fluorine.
B. chlorine.
C. bromine.
D. iodine.
Answer: C; Difficulty: easy; Reference: Section 3.6
7. Which element is a liquid at room temperature?
A. water.
B. mercury.
C. nickel.
D. iodine.
Answer: B; Difficulty: easy; Reference: Section 3.6

8. The majority of the elements are
A. metals.
B. gases.
C. nonmetals.
D. metalloids.
Answer: A; Difficulty: easy; Reference: Section 3.5

9. At room temperature the majority of metals exist as
A. vapors.
B. solids.
C. gases.
D. liquids.
Answer: B; Difficulty: easy; Reference: Section 3.6

10. Which type of element has the following general properties: solid at room temperature, high luster, good conductor of heat and electricity, malleable and ductile?
A. metalloid
B. noble gas
C. nonmetal
D. metal
Answer: D; Difficulty: easy; Reference: Section 3.5

11. Which type of element has the following general properties: low melting point and density, lacks luster, poor conductor of heat and electricity, and brittle?
A. metal
B. nonmetal
C. metalloid
D. transition element
Answer: B; Difficulty: easy; Reference: Section 3.5

12. On the periodic table vertical columns contain elements with similar properties. These vertical columns are called
A. periods.
B. rows.
C. groups.
D. series.
Answer: B; Difficulty: easy; Reference: Section 3.5

13. The elements on the periodic table are placed in order of increasing
A. density.
B. atomic number.
C. boiling point.
D. atomic mass.
Answer: B; Difficulty: easy; Reference: Section 3.5
14. The halogens are in group
A. 1A
B. 2A
C. 3A
D. 7A
Answer: D; Difficulty: easy; Reference: Section 3.5

15. The alkaline earth metals are in group
A. 1A
B. 2A
C. 5A
D. 7A
Answer: B; Difficulty: easy; Reference: Section 3.5

16. The alkali metals are in group
A. 1A
B. 3A
C. 5A
D. 7A
Answer: A; Difficulty: easy; Reference: Section 3.5

17. Which symbol represents a metallic element?
A. P
B. Ti
C. Si
D. I
Answer: B; Difficulty: easy; Reference: Section 3.4
18. Which is a nonmetal?
A. S
B. Pb
C. Sb
D. Na
Answer: A; Difficulty: easy; Reference: Section 3.4

19. Which is a metalloid?
A. Li
B. Be
C. B
D. C
Answer: C; Difficulty: easy; Reference: Section 3.4

20. Which element is not reactive?
A. Hydrogen
B. Oxygen
C. Iron
D. Helium
Answer: D; Difficulty: easy; Reference: Section 3.5
21. Which element forms diatomic molecules?
A. Sulfur
B. Neon
C. Calcium
D. Chlorine
Answer: D; Difficulty: easy; Reference: Section 3.7

22. Which element forms diatomic molecules?
A. Nitrogen
B. Nickel
C. Boron
D. Iron
Answer: A; Difficulty: easy; Reference: Section 3.7

23. A distinct substance composed of two or more elements combined chemically in a definite proportion by mass is a
A. homogeneous mixture.
B. heterogeneous mixture.
C. solution.
D. compound.
Answer: D; Difficulty: easy; Reference: Section 3.8
24. The charge of a cation is
A. positive.
B. negative.
C. neutral.
Answer: A; Difficulty: easy; Reference: Section 3.8

25. The charge of an anion is
A. positive.
B. negative.
C. neutral.
Answer: B; Difficulty: easy; Reference: Section 3.8

26. How many different elements are present in the compound CoCl2?
A. 1
B. 2
C. 3
D. 4
Answer: B; Difficulty: easy; Reference: Section 3.9

27. How many different elements are present in the compound FeSO4?
A. 1
B. 2
C. 3
D. 4
Answer: C; Difficulty: easy; Reference: Section 3.9

28. How many atoms of oxygen are indicated in the formula Fe(NO3)2?
A. 2
B. 3
C. 5
D. 6
Answer: D; Difficulty: medium; Reference: Section 3.9
29. How many atoms of sodium are indicated in the formula Na2SO4?