Chap 01 8e - Stoker
Indicate the answer choice that best completes the statement or answers the question.
Use the following to answer the questions below:
In each of the following multiple-choice questions, characterize EACH of the three given statements as being
TRUE or FALSE and then indicate the collective true-false status of the statements using the choices.
(a) All three statements are true.
(b) Two of the three statements are true.
(c) Only one of the statements is true.
(d) None of the statements is true.
1. Statements:
(1) A molecule is a group of two or more atoms that functions as a unit because the atoms are bound together by
chemical forces.
(2) The crushing of ice to make ice chips is a physical procedure that involves a chemical change.
(3) Samples of pure substances can be found naturally.
a. All three statements are true.
b. Two of the three statements are true.
c. Only one of the statements is true.
d. None of the statements is true.
ANSWER: b
2. What is unique to gases?
a. Definite shape and definite volume
b. Definite shape and indefinite volume
c. Indefinite shape and definite volume
d. Indefinite shape and indefinite volume
ANSWER: d
3. Which of the following statements about compounds and mixtures is correct?
a. Both mixtures and compounds must contain two or more kinds of atoms.
b. Mixtures must always contain at least one compound.
c. Both mixtures and compounds can have a variable composition.
d. Compounds must always contain at least one mixture.
ANSWER: a
4. When a substance undergoes a chemical change, it is always true that
a. it liquifies.
b. it changes from a solid to a gas.
c. it is converted to a new kind of matter with a different composition.
d. the temperature of the substance increases.
ANSWER: c
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,Name: Class: Date:
Chap 01 8e - Stoker
5. What element is represented by the symbol Fe?
a. Tin
b. Lead
c. Silver
d. Iron
ANSWER: d
6. Which of the following statements is correct?
a. Elements, but not compounds, are pure substances.
b. Compounds, but not elements, are pure substances.
c. Both elements and compounds are pure substances.
d. Neither elements nor compounds are pure substances.
ANSWER: c
7. In which of the following pairs of chemical formulas do the two members of the pair contain the same number of
elements as well as the same number of atoms?
a. Cs and CS
b. CoBr2 and COBr2
c. CoCl2 and CoCl3
d. NH4Br and NiSO4
ANSWER: d
8. A substance decomposes upon heating. Choose the appropriate classification from the response list below.
a. Could be an element or a compound
b. Could be an element but not a compound
c. Could be a compound but not an element
d. Can neither be an element nor a compound
ANSWER: c
9. What is mass?
a. The amount of matter present in a sample
b. The size of a sample
c. The amount of space occupied by a sample
d. The dimensions of a sample
ANSWER: a
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,Name: Class: Date:
Chap 01 8e - Stoker
10. Give the classification of matter when two substances exist with three phases present.
a. Heterogeneous mixture
b. Homogeneous mixture
c. Compound
d. Element
ANSWER: a
11. For the elements silicon, sulfur, and tin, choose the appropriate characterization of the set's chemical symbols
from the response list.
a. All symbols have one letter.
b. All symbols have two letters.
c. All symbols start with the same letter.
d. All symbols start with a letter other than the first letter of the element's English name.
ANSWER: c
12. Which of the following substances is both homoatomic and tetraatomic?
a. HCN
b. H2O2
c. P 4
d. H2CO3
ANSWER: c
13. The most abundant elements in the universe and in the Earth's crust are, respectively,
a. oxygen and iron.
b. hydrogen and helium.
c. helium and carbon.
d. hydrogen and oxygen.
ANSWER: d
14. Which of the following pairings of chemical formulas and "molecular descriptions" is incorrect?
a. LiCN and "triatomic"
b. KCl and "heteroatomic"
c. N2 and "homoatomic"
d. SiO2 and "diatomic"
ANSWER: d
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, Name: Class: Date:
Chap 01 8e - Stoker
15. In which of the following sequences of elements do all members of the sequence have chemical symbols starting
with the same letter?
a. Sulfur, silicon, sodium
b. Gold, silver, aluminum
c. Potassium, phosphorus, lead
d. Silver, silicon, tin
ANSWER: b
16. For the elements gold, lead, and bromine, choose the appropriate characterization of the set's chemical symbols
from the response list.
a. All symbols have one letter.
b. All symbols have two letters.
c. All symbols start with the same letter.
d. All symbols start with a letter other than the first letter of the element's English name.
ANSWER: b
17. Which of the following is a property of both liquids and solids, but not gases?
a. Definite shape
b. Indefinite shape
c. Definite volume
d. Indefinite volume
ANSWER: c
18. Which chemical symbol represents silver?
a. Au
b. Si
c. Ag
d. S
ANSWER: c
19. A substance is silvery-gray in color. Choose the appropriate classification from the response list below.
a. Could be an element or a compound
b. Could be an element but not a compound
c. Could be a compound but not an element
d. Can neither be an element nor a compound
ANSWER: a
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Indicate the answer choice that best completes the statement or answers the question.
Use the following to answer the questions below:
In each of the following multiple-choice questions, characterize EACH of the three given statements as being
TRUE or FALSE and then indicate the collective true-false status of the statements using the choices.
(a) All three statements are true.
(b) Two of the three statements are true.
(c) Only one of the statements is true.
(d) None of the statements is true.
1. Statements:
(1) A molecule is a group of two or more atoms that functions as a unit because the atoms are bound together by
chemical forces.
(2) The crushing of ice to make ice chips is a physical procedure that involves a chemical change.
(3) Samples of pure substances can be found naturally.
a. All three statements are true.
b. Two of the three statements are true.
c. Only one of the statements is true.
d. None of the statements is true.
ANSWER: b
2. What is unique to gases?
a. Definite shape and definite volume
b. Definite shape and indefinite volume
c. Indefinite shape and definite volume
d. Indefinite shape and indefinite volume
ANSWER: d
3. Which of the following statements about compounds and mixtures is correct?
a. Both mixtures and compounds must contain two or more kinds of atoms.
b. Mixtures must always contain at least one compound.
c. Both mixtures and compounds can have a variable composition.
d. Compounds must always contain at least one mixture.
ANSWER: a
4. When a substance undergoes a chemical change, it is always true that
a. it liquifies.
b. it changes from a solid to a gas.
c. it is converted to a new kind of matter with a different composition.
d. the temperature of the substance increases.
ANSWER: c
Page 1
,Name: Class: Date:
Chap 01 8e - Stoker
5. What element is represented by the symbol Fe?
a. Tin
b. Lead
c. Silver
d. Iron
ANSWER: d
6. Which of the following statements is correct?
a. Elements, but not compounds, are pure substances.
b. Compounds, but not elements, are pure substances.
c. Both elements and compounds are pure substances.
d. Neither elements nor compounds are pure substances.
ANSWER: c
7. In which of the following pairs of chemical formulas do the two members of the pair contain the same number of
elements as well as the same number of atoms?
a. Cs and CS
b. CoBr2 and COBr2
c. CoCl2 and CoCl3
d. NH4Br and NiSO4
ANSWER: d
8. A substance decomposes upon heating. Choose the appropriate classification from the response list below.
a. Could be an element or a compound
b. Could be an element but not a compound
c. Could be a compound but not an element
d. Can neither be an element nor a compound
ANSWER: c
9. What is mass?
a. The amount of matter present in a sample
b. The size of a sample
c. The amount of space occupied by a sample
d. The dimensions of a sample
ANSWER: a
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,Name: Class: Date:
Chap 01 8e - Stoker
10. Give the classification of matter when two substances exist with three phases present.
a. Heterogeneous mixture
b. Homogeneous mixture
c. Compound
d. Element
ANSWER: a
11. For the elements silicon, sulfur, and tin, choose the appropriate characterization of the set's chemical symbols
from the response list.
a. All symbols have one letter.
b. All symbols have two letters.
c. All symbols start with the same letter.
d. All symbols start with a letter other than the first letter of the element's English name.
ANSWER: c
12. Which of the following substances is both homoatomic and tetraatomic?
a. HCN
b. H2O2
c. P 4
d. H2CO3
ANSWER: c
13. The most abundant elements in the universe and in the Earth's crust are, respectively,
a. oxygen and iron.
b. hydrogen and helium.
c. helium and carbon.
d. hydrogen and oxygen.
ANSWER: d
14. Which of the following pairings of chemical formulas and "molecular descriptions" is incorrect?
a. LiCN and "triatomic"
b. KCl and "heteroatomic"
c. N2 and "homoatomic"
d. SiO2 and "diatomic"
ANSWER: d
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, Name: Class: Date:
Chap 01 8e - Stoker
15. In which of the following sequences of elements do all members of the sequence have chemical symbols starting
with the same letter?
a. Sulfur, silicon, sodium
b. Gold, silver, aluminum
c. Potassium, phosphorus, lead
d. Silver, silicon, tin
ANSWER: b
16. For the elements gold, lead, and bromine, choose the appropriate characterization of the set's chemical symbols
from the response list.
a. All symbols have one letter.
b. All symbols have two letters.
c. All symbols start with the same letter.
d. All symbols start with a letter other than the first letter of the element's English name.
ANSWER: b
17. Which of the following is a property of both liquids and solids, but not gases?
a. Definite shape
b. Indefinite shape
c. Definite volume
d. Indefinite volume
ANSWER: c
18. Which chemical symbol represents silver?
a. Au
b. Si
c. Ag
d. S
ANSWER: c
19. A substance is silvery-gray in color. Choose the appropriate classification from the response list below.
a. Could be an element or a compound
b. Could be an element but not a compound
c. Could be a compound but not an element
d. Can neither be an element nor a compound
ANSWER: a
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