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1. Why is CaO the symbol for calcium oxide instead of CAO?

	a.	both can be the symbols for calcium oxide
	b.	both are incorrect; the symbol is cao
	c.	a capital letter means a new symbol
	d.	both are incorrect as the symbol should be CaO_x

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

2. What is the meaning of the two (2) in ethyl alcohol, C₂H₅OH?

	a.	all alcohol molecules contain two carbon atoms
	b.	there are two carbon atoms per molecule of ethyl alcohol
	c.	carbon is diatomic
	d.	all of these are correct statements

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

3. The symbols for elements with accepted names

	a.	consist of a single capital letter.
	b.	consist of a capital letter and a small letter.
	c.	consist of either a single capital letter or a capital letter and a small letter.
	d.	No answer is correct.

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

4. A molecular formula

	a.	is represented using the symbols of the elements in the formula.
	b.	is represented using a system of circles that contain different symbols.
	c.	cannot be represented conveniently using symbols for the elements.
	d.	is represented using words rather than symbols.

ANSWER:	a
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

5. Which of the following uses the unit of "u" or “amu”?

	a.	atomic weights of atoms	b.	relative masses of atoms
	c.	molecular weights of molecules	d.	more than one response is correct

ANSWER:	d
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

6. What is meant when the symbol C-12 (or ¹²C) is used?

	a.	the carbon atom weighs 12 grams	b.	the carbon atom weighs 12 pounds
	c.	the carbon atom weighs 12 amu	d.	the melting point of carbon is 12°C

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

7. Refer to a periodic table and tell how many helium atoms (He) would be needed to get close to the same mass as an average oxygen atom (O).

six

four

twelve

one-fourth

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

8. Determine the molecular weight of hydrogen peroxide, H₂O₂, in u (or amu).

17.01

18.02

34.02

33.01

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

9. Using whole numbers, determine the molecular weight of calcium hydroxide, Ca(OH)₂.

ANSWER:	d
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

10. The average relative mass of an ozone molecule is 48.0 u. An ozone molecule contains only oxygen atoms. What does this molecular weight indicate about the formula of the ozone molecule?

	a.	It is monoatomic.	b.	It is diatomic.
	c.	It is triatomic.	d.	Impossible to determine

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

11. Which of the following pairs are about equal in mass?

	a.	proton and electron	b.	electron and neutron
	c.	proton and neutron	d.	nucleus and surrounding electrons

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

12. Which of the following particles is the smallest?

	a.	proton	b.	electron
	c.	neutron	d.	they are all the same size

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

13. How many electrons are in a neutral atom of carbon-13 (¹³C)?

no way to tell

ANSWER:	a
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

About this item

1. Why is CaO the symbol for calcium oxide instead of CAO?

	a.	both can be the symbols for calcium oxide
	b.	both are incorrect; the symbol is cao
	c.	a capital letter means a new symbol
	d.	both are incorrect as the symbol should be CaO_x

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

2. What is the meaning of the two (2) in ethyl alcohol, C₂H₅OH?

	a.	all alcohol molecules contain two carbon atoms
	b.	there are two carbon atoms per molecule of ethyl alcohol
	c.	carbon is diatomic
	d.	all of these are correct statements

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

3. The symbols for elements with accepted names

	a.	consist of a single capital letter.
	b.	consist of a capital letter and a small letter.
	c.	consist of either a single capital letter or a capital letter and a small letter.
	d.	No answer is correct.

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

4. A molecular formula

	a.	is represented using the symbols of the elements in the formula.
	b.	is represented using a system of circles that contain different symbols.
	c.	cannot be represented conveniently using symbols for the elements.
	d.	is represented using words rather than symbols.

ANSWER:	a
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

5. Which of the following uses the unit of "u" or “amu”?

	a.	atomic weights of atoms	b.	relative masses of atoms
	c.	molecular weights of molecules	d.	more than one response is correct

ANSWER:	d
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

6. What is meant when the symbol C-12 (or ¹²C) is used?

	a.	the carbon atom weighs 12 grams	b.	the carbon atom weighs 12 pounds
	c.	the carbon atom weighs 12 amu	d.	the melting point of carbon is 12°C

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

7. Refer to a periodic table and tell how many helium atoms (He) would be needed to get close to the same mass as an average oxygen atom (O).

six

four

twelve

one-fourth

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

8. Determine the molecular weight of hydrogen peroxide, H₂O₂, in u (or amu).

17.01

18.02

34.02

33.01

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

9. Using whole numbers, determine the molecular weight of calcium hydroxide, Ca(OH)₂.

ANSWER:	d
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

10. The average relative mass of an ozone molecule is 48.0 u. An ozone molecule contains only oxygen atoms. What does this molecular weight indicate about the formula of the ozone molecule?

	a.	It is monoatomic.	b.	It is diatomic.
	c.	It is triatomic.	d.	Impossible to determine

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

11. Which of the following pairs are about equal in mass?

	a.	proton and electron	b.	electron and neutron
	c.	proton and neutron	d.	nucleus and surrounding electrons

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

12. Which of the following particles is the smallest?

	a.	proton	b.	electron
	c.	neutron	d.	they are all the same size

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

13. How many electrons are in a neutral atom of carbon-13 (¹³C)?

no way to tell

ANSWER:	a
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

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About this item

1. Why is CaO the symbol for calcium oxide instead of CAO?

	a.	both can be the symbols for calcium oxide
	b.	both are incorrect; the symbol is cao
	c.	a capital letter means a new symbol
	d.	both are incorrect as the symbol should be CaO_x

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

2. What is the meaning of the two (2) in ethyl alcohol, C₂H₅OH?

	a.	all alcohol molecules contain two carbon atoms
	b.	there are two carbon atoms per molecule of ethyl alcohol
	c.	carbon is diatomic
	d.	all of these are correct statements

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

3. The symbols for elements with accepted names

	a.	consist of a single capital letter.
	b.	consist of a capital letter and a small letter.
	c.	consist of either a single capital letter or a capital letter and a small letter.
	d.	No answer is correct.

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

4. A molecular formula

	a.	is represented using the symbols of the elements in the formula.
	b.	is represented using a system of circles that contain different symbols.
	c.	cannot be represented conveniently using symbols for the elements.
	d.	is represented using words rather than symbols.

ANSWER:	a
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

5. Which of the following uses the unit of "u" or “amu”?

	a.	atomic weights of atoms	b.	relative masses of atoms
	c.	molecular weights of molecules	d.	more than one response is correct

ANSWER:	d
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

6. What is meant when the symbol C-12 (or ¹²C) is used?

	a.	the carbon atom weighs 12 grams	b.	the carbon atom weighs 12 pounds
	c.	the carbon atom weighs 12 amu	d.	the melting point of carbon is 12°C

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

7. Refer to a periodic table and tell how many helium atoms (He) would be needed to get close to the same mass as an average oxygen atom (O).

six

four

twelve

one-fourth

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

8. Determine the molecular weight of hydrogen peroxide, H₂O₂, in u (or amu).

17.01

18.02

34.02

33.01

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

9. Using whole numbers, determine the molecular weight of calcium hydroxide, Ca(OH)₂.

ANSWER:	d
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

10. The average relative mass of an ozone molecule is 48.0 u. An ozone molecule contains only oxygen atoms. What does this molecular weight indicate about the formula of the ozone molecule?

	a.	It is monoatomic.	b.	It is diatomic.
	c.	It is triatomic.	d.	Impossible to determine

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

11. Which of the following pairs are about equal in mass?

	a.	proton and electron	b.	electron and neutron
	c.	proton and neutron	d.	nucleus and surrounding electrons

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

12. Which of the following particles is the smallest?

	a.	proton	b.	electron
	c.	neutron	d.	they are all the same size

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

13. How many electrons are in a neutral atom of carbon-13 (¹³C)?

no way to tell

ANSWER:	a
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

About this item

1. Why is CaO the symbol for calcium oxide instead of CAO?

	a.	both can be the symbols for calcium oxide
	b.	both are incorrect; the symbol is cao
	c.	a capital letter means a new symbol
	d.	both are incorrect as the symbol should be CaO_x

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

2. What is the meaning of the two (2) in ethyl alcohol, C₂H₅OH?

	a.	all alcohol molecules contain two carbon atoms
	b.	there are two carbon atoms per molecule of ethyl alcohol
	c.	carbon is diatomic
	d.	all of these are correct statements

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

3. The symbols for elements with accepted names

	a.	consist of a single capital letter.
	b.	consist of a capital letter and a small letter.
	c.	consist of either a single capital letter or a capital letter and a small letter.
	d.	No answer is correct.

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

4. A molecular formula

	a.	is represented using the symbols of the elements in the formula.
	b.	is represented using a system of circles that contain different symbols.
	c.	cannot be represented conveniently using symbols for the elements.
	d.	is represented using words rather than symbols.

ANSWER:	a
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

5. Which of the following uses the unit of "u" or “amu”?

	a.	atomic weights of atoms	b.	relative masses of atoms
	c.	molecular weights of molecules	d.	more than one response is correct

ANSWER:	d
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

6. What is meant when the symbol C-12 (or ¹²C) is used?

	a.	the carbon atom weighs 12 grams	b.	the carbon atom weighs 12 pounds
	c.	the carbon atom weighs 12 amu	d.	the melting point of carbon is 12°C

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

7. Refer to a periodic table and tell how many helium atoms (He) would be needed to get close to the same mass as an average oxygen atom (O).

six

four

twelve

one-fourth

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

8. Determine the molecular weight of hydrogen peroxide, H₂O₂, in u (or amu).

17.01

18.02

34.02

33.01

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

9. Using whole numbers, determine the molecular weight of calcium hydroxide, Ca(OH)₂.

ANSWER:	d
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

10. The average relative mass of an ozone molecule is 48.0 u. An ozone molecule contains only oxygen atoms. What does this molecular weight indicate about the formula of the ozone molecule?

	a.	It is monoatomic.	b.	It is diatomic.
	c.	It is triatomic.	d.	Impossible to determine

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

11. Which of the following pairs are about equal in mass?

	a.	proton and electron	b.	electron and neutron
	c.	proton and neutron	d.	nucleus and surrounding electrons

ANSWER:	c
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

12. Which of the following particles is the smallest?

	a.	proton	b.	electron
	c.	neutron	d.	they are all the same size

ANSWER:	b
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

13. How many electrons are in a neutral atom of carbon-13 (¹³C)?

no way to tell

ANSWER:	a
POINTS:	1
QUESTION TYPE:	Multiple Choice
HAS VARIABLES:	False
DATE CREATED:	3/4/2016 3:37 PM
DATE MODIFIED:	3/4/2016 3:37 PM

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Chemistry for Today General Organic and Biochemistry 9th Edition By Seager - Test Bank - updated 2025

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