Question 1

The subatomic particles that are found in the nucleus of an atom are the

Accepted Answer

A)   protons and electrons.
B)   neutrons and protons.
C)   electrons only.
D)   protons only.
E)   electrons and neutrons.F) A) and E)
G) A) and D)

Question 2

An atom's valence electron shell

Accepted Answer

A)   is filled when it has three electrons.
B)   determines its chemical reactivity.
C)   determines its atomic mass.
D)   is filled with positively charged particles.
E)   is filled identically for every element.F) C) and E)
G) None of the above

Question 3

Which property of water causes sugar to dissolve in coffee?

Accepted Answer

A)   Water has high heat capacity.
B)   Water is less dense than ice.
C)   Water is a good solvent.
D)   Water is cohesive.
E)   Water is able to change from a gas to a solid.F) B) and C)
G) A) and C)

Question 4

An atom that has an electrical charge is called a(n)

Accepted Answer

A)   ion.
B)   molecule.
C)   isotope.
D)   element.
E)   proton.F) A) and C)
G) C) and D)

Question 5

Isotopes of an atom differ in their

Accepted Answer

A)   atomic number.
B)   atomic mass.
C)   number of electrons.
D)   atomic radius.
E)   number of protons.F) C) and D)
G) B) and C)

Question 6

The type of bond that would form from the transfer of an electron from one atom to another is a(n)  ________ bond.

Accepted Answer

A)   covalent
B)   ionic
C)   hydrogen
D)   atomic
E)   isotopicF) B) and C)
G) A) and E)

Question 7

After drinking a great deal of coffee (pH 5) , a human's blood buffering system would need to ________ as the coffee was digested to lower the level of acid present in the blood stream.

Accepted Answer

A)   release OH -
B)   take up H +
C)   release H +
D)   take up OH -
E)   release OH - and take up H +F) B) and E)
G) A) and E)

Question 8

Chemical bonds involve

Accepted Answer

A)   the giving and taking of electrons.
B)   the giving and taking of protons.
C)   the giving, taking, or sharing of electrons.
D)   the giving, taking, or sharing of protons.
E)   the sharing of electrons.F) None of the above
G) B) and E)

Question 9

Glucose, C 6H 12O 6, is best described as a(n)

Accepted Answer

A)   element.
B)   isotope.
C)   compound.
D)   ion.
E)   atom.F) A) and B)
G) A) and C)

Question 10

All atoms of the same element have the same

Accepted Answer

A)   number of neutrons.
B)   atomic number.
C)   number of electrons.
D)   atomic mass.
E)   number of ions.F) A) and B)
G) B) and C)

Question 11

Of the following examples, which best demonstrates the property of water cohesion?

Accepted Answer

A)   Water can move up a 100-foot pine tree, from the roots to the leaves.
B)   A rock skipping across the surface of a lake.
C)   Water requires a great deal of heat to reach the point of vaporizing.
D)   A can of soda bursts when it is placed in the freezer.
E)   A large body of fresh water takes a long time to warm up after the winter season.F) A) and C)
G) B) and E)

Question 12

Given the chemical equation: 6 CO 2+ 6 H 2O + light → C​ 6H 12O 6+ 6 O 2 , identify which of the following statements are correct. Check all that apply.

Accepted Answer

A)   CO 2 is a reactant
B)   H 2O is a product
C)   C 6H 12O 6 is both a reactant and a product
D)   O 2 is a product.
E)   There is not enough information to distinguish the reactants from the products.F) C) and D)
G) B) and D)

Question 13

Which of the following would be considered a trace element in living things?

Accepted Answer

A)   oxygen
B)   carbon
C)   hydrogen
D)   nitrogen
E)   zincF) A) and B)
G) None of the above

Question 14

Although Oregon and South Dakota are at similar latitudes, winters in Oregon arewarmer and summers in Oregon are cooler. Which of the following might explain these differences between the climate of Oregon and the climate of South Dakota?

Accepted Answer

A)   South Dakota has fewer trees.
B)   The Pacific Ocean makes Oregon temperatures more moderate.
C)   Oregon receives more rainfall.
D)   South Dakota has fewer lakes and rivers.
E)   South Dakota has more prevailing winds from the west.F) None of the above
G) C) and D)

Question 15

Which of the following is a property of water?

Accepted Answer

A)   water is a good solvent
B)   water is cohesive
C)   water has a high heat capacity
D)   water can be found as a solid, liquid, or gas
E)   All of the above are properties of water.F) A) and B)
G) B) and D)

Question 16

The figure below is depicting the interaction of water molecules with one another. The weak attractions between water molecules are known as

Accepted Answer

A)   covalent bonds.
B)   hydrogen bonds.
C)   ionic bonds.
D)   postive and negative ions.
E)   no chemical bonding.F) B) and E)
G) C) and E)

Question 17

The atomic structure of water satisfies the octet rule by having

Accepted Answer

A)   electrons shared between the two oxygen atoms.
B)   electrons from hydrogen transferred to the oxygen atom.
C)   electrons from oxygen transferred to the hydrogen atoms.
D)   oxygen share electrons with two hydrogen atoms.
E)   electrons shared between the two hydrogen atoms.F) C) and D)
G) B) and E)

Question 18

Which of the following best describes the structure of how water molecules form?

Accepted Answer

A)   Hydrogen atoms covalently bond with each other to create one stable valence shell of electrons. The hydrogen molecule then forms a hydrogen bond with an oxygen atom to create the water molecule.
B)   One oxygen atom transfers an electron to each of two hydrogen atoms, forming an ionic bond.
C)   The oxygen atom and hydrogen atoms form a covalent bond with one another to create stable valence shells of electrons. The electrons are shared unequally resulting in a polar molecule.
D)   Hydrogen bonds are formed between the two hydrogen atoms and the oxygen atom.
E)   Because of its strong electronegativity, oxygenremoves one electron from two different hydrogen atoms. This satisfies the valence shell of oxygen. Then hydrogen bonds form between the two hydrogen atoms which keeps them in the vicinity of the oxygen atom.F) A) and B)
G) A) and D)

Question 19

Which of the following properties of water involve hydrogen bonds? Check all that apply

Accepted Answer

A)   cohesion
B)   high heat capacity
C)   surface tension
D)   polarity
E)   water expands as it freezesF) D) and E)
G) None of the above

Question 20

When a positively charged hydrogen in a water molecule become attracted to thenegatively charged oxygen in a nearby water molecule, this is called a ionic bond.

Accepted Answer

A) True 
 B)False

Exam 2: The Chemical Basis of Life

Glucose, C 6H 12O 6, is best described as a(n)

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Chemical bonds involve

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When a positively charged hydrogen in a water molecule become attracted to thenegatively charged oxygen in a nearby water molecule, this is called a ionic bond.

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All atoms of the same element have the same

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After drinking a great deal of coffee (pH 5) , a human's blood buffering system would need to ________ as the coffee was digested to lower the level of acid present in the blood stream.

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Of the following examples, which best demonstrates the property of water cohesion?

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Which of the following best describes the structure of how water molecules form?

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An atom that has an electrical charge is called a(n)

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The subatomic particles that are found in the nucleus of an atom are the

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The figure below is depicting the interaction of water molecules with one another. The weak attractions between water molecules are known as

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Although Oregon and South Dakota are at similar latitudes, winters in Oregon arewarmer and summers in Oregon are cooler. Which of the following might explain these differences between the climate of Oregon and the climate of South Dakota?

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Which of the following properties of water involve hydrogen bonds? Check all that apply

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Which property of water causes sugar to dissolve in coffee?

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Which of the following is a property of water?

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Which of the following would be considered a trace element in living things?

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The type of bond that would form from the transfer of an electron from one atom to another is a(n) ________ bond.

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The atomic structure of water satisfies the octet rule by having

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An atom's valence electron shell

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Given the chemical equation: 6 CO 2+ 6 H 2O + light → C​ 6H 12O 6+ 6 O 2 , identify which of the following statements are correct. Check all that apply.

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Isotopes of an atom differ in their

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Glucose, C ₆H ₁₂O ₆, is best described as a(n)

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Given the chemical equation: 6 CO ₂+ 6 H ₂O + light → C ₆H ₁₂O ₆+ 6 O _{2 ,}identify which of the following statements are correct. Check all that apply.

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