Question 1

Chlorine has an atomic number of 17, and argon has an atomic number of 18. From this information alone, you can predict that:

Accepted Answer

A)   argon has more neutrons than chlorine.
B)   argon is more chemically reactive than chlorine.
C)   argon will more readily ionize than chlorine.
D)   chlorine is more chemically reactive than argon.
E)   chlorine has more neutrons than argon.F) All of the above
G) C) and D)

Question 2

What are the three most important subatomic particles in an atom called? Which one is involved in forming chemical bonds?

Accepted Answer

Protons, neutrons, and electro...

Question 3

All the atoms of the same element will have the same:

Accepted Answer

A)   number of protons.
B)   number of neutrons.
C)   number of protons and neutrons.
D)   mass.E) A) and D)
F) A) and C)

Question 4

Refer to the figure below, and then answer the question that follows. 
-Which of the following molecules is most likely to bind to an ion, and why?

Accepted Answer

A)   Molecule A, because it has electrical charges that will attract an ion
B)   Molecule B, because it has four hydrogen atoms on the exterior of the molecule
C)   Molecule A, because any molecule with oxygen is able to bind to an ion
D)   Molecule B, because it has a carbon at in the center of the moleculeE) B) and D)
F) A) and D)

Question 5

The number of atoms coming out of a chemical reaction must equal the number of atoms going into a chemical reaction. This follows the principle of:

Accepted Answer

A)   the law of conservation of energy.
B)   chemical bonding.
C)   atomic theory.
D)   the law of conservation of mass.E) A) and B)
F) A) and C) D

Question 6

An element can't be broken down into another form of pure matter.

Accepted Answer

A) True 
 B)False  True

Question 7

A signal molecule will ________ to a receptor if the molecules' shapes match, similar to a key in a lock.

Accepted Answer

The answer of A signal molecule will ________ to a...

Question 8

Sodium chloride (NaCl)  crystals (table salt)  form as a result of:

Accepted Answer

A)   covalent bonding.
B)   hydrogen bonding.
C)   being chemically stable.
D)   the attraction of oppositely charged particles for each other.E) B) and C)
F) A) and D) D

Question 9

What is chemical bonding? Explain the differences between covalent and ionic bonding.

Accepted Answer

Atoms react if they need electrons to co...

Question 10

Water is a polar molecule because:

Accepted Answer

A)   oxygen is more electronegative than hydrogen.
B)   hydrogen has more neutrons than oxygen.
C)   oxygen has more electrons than hydrogen.
D)   oxygen has more neutrons than hydrogen.
E)   hydrogen is more electronegative than oxygen.F) B) and D)
G) A) and E)

Question 11

Atoms are electrically neutral.

Accepted Answer

A) True 
 B)False

Question 12

An atom becomes an ion when:

Accepted Answer

A)   it gains or loses neutrons.
B)   it forms a covalent bond.
C)   it gains or loses electrons.
D)   hydrogen ions are shared.
E)   it gains or loses protons.F) D) and E)
G) A) and E)

Question 13

Match the following.
A) positive charge
B) outer electrons
C) ionic bond
D) no electric charge
E) hydrogen bond
F) nonpolar covalent bond
G) negative charge
H) polar covalent bond
-Protons

Accepted Answer

The answer of Match the following.
A) positive charge
B) outer electrons
C)...

Question 14

Isotopes are atoms of the same element that differ in their:

Accepted Answer

A)   number of electrons.
B)   number of neutrons.
C)   number of protons.
D)   ionic charge.E) B) and C)
F) A) and B)

Question 15

You have been having trouble with acid indigestion recently. You buy some milk of magnesia, an antacid, from the drug store to relieve your indigestion. Milk of magnesia is a mixture of magnesium hydroxide in water. What makes milk of magnesia a good antacid? If you could chemically analyze your stomach fluids, what would you find before and after taking the antacid?

Accepted Answer

Magnesium hydroxide provides h...

Question 16

Temperatures on the Earth are moderated by the presence of so much water on the planet. Using your understanding of water's temperature-moderating abilities, predict what would happen to temperatures in the tropical and temperate regions if the oceans were made of alcohol instead of water. (Hint: Water has a higher specific heat than alcohol.)

Accepted Answer

Water's high specific heat means it is v...

Question 17

Match the following.
A) positive charge
B) outer electrons
C) ionic bond
D) no electric charge
E) hydrogen bond
F) nonpolar covalent bond
G) negative charge
H) polar covalent bond
-Results from an unequal sharing of shared electrons

Accepted Answer

The answer of Match the following.
A) positive charge
B) outer electrons
C)...

Question 18

Hydrogen bonds may form between oxygen of one water molecule and ________ of another water molecule.

Accepted Answer

The answer of Hydrogen bonds may form between oxygen of...

Question 19

A single covalent chemical bond represents a sharing of ________ electrons between two atoms.

Accepted Answer

The answer of A single covalent chemical bond represents a...

Question 20

Which of the following are found in the nucleus of an atom?

Accepted Answer

A)   protons
B)   neutrons
C)   electrons
D)   protons and neutrons
E)   protons, neutrons, and electronsF) B) and D)
G) A) and B)

Exam 2: Fundamental Building Blocks: Chemistry, Water, and Ph

Chlorine has an atomic number of 17, and argon has an atomic number of 18. From this information alone, you can predict that:

Correct Answer
verified

What are the three most important subatomic particles in an atom called? Which one is involved in forming chemical bonds?

Correct Answer
verified
Protons, neutrons, and electro...
View Answer

All the atoms of the same element will have the same:

Correct Answer
verified

Refer to the figure below, and then answer the question that follows. -Which of the following molecules is most likely to bind to an ion, and why?

Correct Answer
verified

The number of atoms coming out of a chemical reaction must equal the number of atoms going into a chemical reaction. This follows the principle of:

Correct Answer
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D

An element can't be broken down into another form of pure matter.

Correct Answer
verified
True

A signal molecule will ________ to a receptor if the molecules' shapes match, similar to a key in a lock.

Correct Answer
verified

Sodium chloride (NaCl) crystals (table salt) form as a result of:

Correct Answer
verified
D

What is chemical bonding? Explain the differences between covalent and ionic bonding.

Correct Answer
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Atoms react if they need electrons to co...
View Answer

Water is a polar molecule because:

Correct Answer
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Atoms are electrically neutral.

Correct Answer
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An atom becomes an ion when:

Correct Answer
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Match the following. A) positive charge B) outer electrons C) ionic bond D) no electric charge E) hydrogen bond F) nonpolar covalent bond G) negative charge H) polar covalent bond -Protons

Correct Answer
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Isotopes are atoms of the same element that differ in their:

Correct Answer
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Correct Answer
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Magnesium hydroxide provides h...
View Answer

Correct Answer
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Water's high specific heat means it is v...
View Answer

Match the following. A) positive charge B) outer electrons C) ionic bond D) no electric charge E) hydrogen bond F) nonpolar covalent bond G) negative charge H) polar covalent bond -Results from an unequal sharing of shared electrons

Correct Answer
verified

Hydrogen bonds may form between oxygen of one water molecule and ________ of another water molecule.

Correct Answer
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A single covalent chemical bond represents a sharing of ________ electrons between two atoms.

Correct Answer
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Which of the following are found in the nucleus of an atom?

Correct Answer
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Exam 2: Fundamental Building Blocks: Chemistry, Water, and Ph

Chlorine has an atomic number of 17, and argon has an atomic number of 18. From this information alone, you can predict that:

Correct AnswerverifiedShow Answer

What are the three most important subatomic particles in an atom called? Which one is involved in forming chemical bonds?

Correct AnswerverifiedProtons, neutrons, and electro...View AnswerShow Answer

All the atoms of the same element will have the same:

Correct AnswerverifiedShow Answer

Refer to the figure below, and then answer the question that follows. -Which of the following molecules is most likely to bind to an ion, and why?

Correct AnswerverifiedShow Answer

The number of atoms coming out of a chemical reaction must equal the number of atoms going into a chemical reaction. This follows the principle of:

Correct AnswerverifiedD

An element can't be broken down into another form of pure matter.

Correct AnswerverifiedTrue

A signal molecule will ________ to a receptor if the molecules' shapes match, similar to a key in a lock.

Correct AnswerverifiedShow Answer

Sodium chloride (NaCl) crystals (table salt) form as a result of:

Correct AnswerverifiedD

What is chemical bonding? Explain the differences between covalent and ionic bonding.

Correct AnswerverifiedAtoms react if they need electrons to co...View AnswerShow Answer

Water is a polar molecule because:

Correct AnswerverifiedShow Answer

Atoms are electrically neutral.

Correct AnswerverifiedShow Answer

An atom becomes an ion when:

Correct AnswerverifiedShow Answer

Match the following. A) positive charge B) outer electrons C) ionic bond D) no electric charge E) hydrogen bond F) nonpolar covalent bond G) negative charge H) polar covalent bond -Protons

Correct AnswerverifiedShow Answer

Isotopes are atoms of the same element that differ in their:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedMagnesium hydroxide provides h...View AnswerShow Answer

Correct AnswerverifiedWater's high specific heat means it is v...View AnswerShow Answer

Match the following. A) positive charge B) outer electrons C) ionic bond D) no electric charge E) hydrogen bond F) nonpolar covalent bond G) negative charge H) polar covalent bond -Results from an unequal sharing of shared electrons

Correct AnswerverifiedShow Answer

Hydrogen bonds may form between oxygen of one water molecule and ________ of another water molecule.

Correct AnswerverifiedShow Answer

A single covalent chemical bond represents a sharing of ________ electrons between two atoms.

Correct AnswerverifiedShow Answer

Which of the following are found in the nucleus of an atom?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Protons, neutrons, and electro...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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D

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True

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D

Correct Answer
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Atoms react if they need electrons to co...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Magnesium hydroxide provides h...
View Answer

Correct Answer
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Water's high specific heat means it is v...
View Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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