Question 1

Which of the following is NOT an example of matter?

Accepted Answer

A)  wind
B)  energy
C)  light
D)  sound
E)  None of the answers are correct.F) None of the above
G) B) and E)

Question 2

A friend who is not taking your Biology course fills a cup with ice and then a drink.The friend asks you why the ice in the cup is floating,and you are able to say that

Accepted Answer

A)  the molecules are closer together in ice than in liquid water.
B)  the molecules are farther apart in ice than in liquid water.
C)  ice is denser than liquid water.
D)  convection currents caused by temperature differences push upwards on the ice.
E)  water vapor is less dense than liquid water.F) A) and B)
G) A) and C)

Question 3

As part of a lab practical,you are asked to attach explanation to labels on chemical models.To the link between amino acids in a protein you would add a label describing that it is

Accepted Answer

A)  an ionic bond in proteins.
B)  a covalent bond in carbohydrates.
C)  a covalent bond in proteins.
D)  an ionic bond in carbohydrates.
E)  a hydrogen bond in nucleic acids.F) A) and E)
G) All of the above

Question 4

You can painlessly wade into a pool,but doing a belly flop off of the high diving board hurts because of

Accepted Answer

A)  water's high density.
B)  adhesion of your molecules with the water molecules.
C)  water's high boiling point.
D)  a neutral pH.
E)  cohesion of the water molecules.F) C) and E)
G) A) and E)

Question 5

You have been presented with a new compound that is bright purple and that smells of violets.However,it sticks to surfaces in a way similar to water and can replace water in the running of living cells.You might then expect this new molecule to make

Accepted Answer

A)  covalent bonds.
B)  ionic bonds.
C)  hydrogen bonds.
D)  hydrophobic bonds.
E)  peptide bonds.F) A) and B)
G) D) and E)

Question 6

If an atom has a valence shell that is full,then it

Accepted Answer

A)  is highly reactive.
B)  is chemically unstable.
C)  is highly likely to combine with other atoms.
D)  is found only in a gas form.
E)  is inert.F) C) and D)
G) B) and E)

Question 7

In the example of ionic bond formation between sodium and chlorine

Accepted Answer

A)  Na is the chemical symbol for chlorine.
B)  sodium accepts an electron.
C)  chlorine accepts an electron.
D)  chlorine becomes positively chargeD.
E)  both sodium and chlorine accept electrons.F) B) and E)
G) B) and D)

Question 8

Evaporation is

Accepted Answer

A)  the conversion of a liquid into a vapor.
B)  the conversion of a solid into a vapor.
C)  the conversion of a vapor into a liquid.
D)  the conversion of a vapor into a soliD.
E)  All answers are correct.F) B) and C)
G) A) and E)

Question 9

If you were told to sort cards to into boxes after a lab on elements,you would put into a slot labelled "Mass Number" any card with text that meant

Accepted Answer

A)  the total number of protons,neutrons,and electrons of an atom.
B)  the total number of protons and electrons of an atom.
C)  the total number of protons and neutrons of an atom.
D)  the total number of neutrons and electrons of an atom.
E)  the total number of protons of an atom.F) None of the above
G) A) and B)

Question 10

You are asked to help prepare a lab and need to label some beakers.In one,you are told,there are sugars polymerizing into a large polymer,so you prepare a label that mentions

Accepted Answer

A)  hydrolysis.
B)  reproduction.
C)  dehydration synthesis.
D)  hydrolysis and dehydration synthesis.
E)  unrelated to chemical bonds.F) C) and D)
G) A) and E)

Question 11

Polymers are made of monomers,and both are kinds of compounds.

Accepted Answer

A) True 
 B)False

Question 12

Imagine that you are in a study session,and your group is taking a practice quiz that members grade for one another.For the question,"A cook decides to cook only using monomers,so what chemicals could the cook use?" you would mark correct if the paper you are grading has this answer as

Accepted Answer

A)  cellulose and sucrose.
B)  lactose and sucrose.
C)  glucose and fructose.
D)  glucose and cellulose.
E)  None of the answers are correct.F) A) and B)
G) A) and C)

Question 13

You are asked to help solve a murder,and a note from the murdered taunting the police says that the crime was committed using a lipid.What molecule could you exclude from your search?

Accepted Answer

A)  a triglyceride
B)  a phospholipid
C)  a wax
D)  a sterol
E)  a starch moleculeF) A) and B)
G) B) and E)

Question 14

The atomic number of an atom or element is

Accepted Answer

A)  the number of neutrons in the nucleus.
B)  the number of electrons in the nucleus.
C)  the number of protons in the nucleus.
D)  the number of neutrons in the orbitals.
E)  the number of protons in the orbitals.F) B) and E)
G) A) and B)

Question 15

In a chemical equation

Accepted Answer

A)  the reactants are on the right of the yields arrow.
B)  reactants and products are on both sides of the yields arrow.
C)  the products are on the left of the yields arrow.
D)  the reactants are on the left of the yields arrow.
E)  the number of atoms of each element may differ on the two sides of the yields arrow.F) A) and E)
G) A) and C)

Question 16

Two hydrogen atoms and an oxygen atom bonded together form

Accepted Answer

A)  a molecule,but not a compound.
B)  a compound,but not a molecule.
C)  a molecule and a compound.
D)  an atom and a molecule.
E)  an atom,but not a molecule or compound.F) D) and E)
G) A) and B)

Question 17

Isotopes of the same element are different from one another in that

Accepted Answer

A)  they have a different number of protons.
B)  they have a different number of neutrons.
C)  they have a different number of electrons.
D)  they are a different element.
E)  only one of the isotopes is matter.F) A) and B)
G) A) and C)

Question 18

The primary building block (monomer) of nucleic acids is

Accepted Answer

A)  a nucleotide.
B)  a glucose molecule.
C)  a fatty acid.
D)  an amino aciD.
E)  four interconnected carbon rings.F) C) and D)
G) C) and E)

Question 19

If you were writing the answer key for a professor's exam,and one question asked students to mark a box for the number of outer shell electrons possessed by an element having the maximum number,you would have the key say that the correct answer was

Accepted Answer

A)  one electron.
B)  two electrons.
C)  four electrons.
D)  eight electrons.
E)  sixteen electrons.F) A) and B)
G) B) and C)

Question 20

Organic molecules are defined as chemical compounds that contain

Accepted Answer

A)  hydrophilic solutions.
B)  isotopes of carbon.
C)  ionically bonded atoms.
D)  strong hydrogen bonds.
E)  carbon and hydrogen.F) B) and D)
G) B) and C)

Exam 2: The Chemistry of Life

Evaporation is

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Polymers are made of monomers,and both are kinds of compounds.

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You are asked to help prepare a lab and need to label some beakers.In one,you are told,there are sugars polymerizing into a large polymer,so you prepare a label that mentions

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In a chemical equation

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If an atom has a valence shell that is full,then it

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Imagine that you are in a study session,and your group is taking a practice quiz that members grade for one another.For the question,"A cook decides to cook only using monomers,so what chemicals could the cook use?" you would mark correct if the paper you are grading has this answer as

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You can painlessly wade into a pool,but doing a belly flop off of the high diving board hurts because of

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Two hydrogen atoms and an oxygen atom bonded together form

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You are asked to help solve a murder,and a note from the murdered taunting the police says that the crime was committed using a lipid.What molecule could you exclude from your search?

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Isotopes of the same element are different from one another in that

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In the example of ionic bond formation between sodium and chlorine

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You have been presented with a new compound that is bright purple and that smells of violets.However,it sticks to surfaces in a way similar to water and can replace water in the running of living cells.You might then expect this new molecule to make

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The primary building block (monomer) of nucleic acids is

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The atomic number of an atom or element is

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If you were told to sort cards to into boxes after a lab on elements,you would put into a slot labelled "Mass Number" any card with text that meant

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Which of the following is NOT an example of matter?

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Organic molecules are defined as chemical compounds that contain

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As part of a lab practical,you are asked to attach explanation to labels on chemical models.To the link between amino acids in a protein you would add a label describing that it is

Correct AnswerverifiedShow Answer

A friend who is not taking your Biology course fills a cup with ice and then a drink.The friend asks you why the ice in the cup is floating,and you are able to say that

Correct AnswerverifiedShow Answer

If you were writing the answer key for a professor's exam,and one question asked students to mark a box for the number of outer shell electrons possessed by an element having the maximum number,you would have the key say that the correct answer was

Correct AnswerverifiedShow Answer

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