Question 1

A mass of 10 g of table salt dissolves in water to form a(n)________ mixture (i.e.,a mixture that is uniform throughout).

Accepted Answer

The answer of A mass of 10 g of table...

Question 2

Which of the following statements concerning the kinetic-molecular theory of matter is/are CORRECT?
1)Particles in a liquid vibrate back and forth about an average position.
2)Particles in a solid are packed closely together,but are not confined to specific positions.
3)Particles in a gas fly about randomly,colliding with themselves and the walls of their container.

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  1,2,and 3 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  1,2,and 3

Question 3

The law of ________ states that the total energy of the universe is constant.

Accepted Answer

conservati

Question 4

The element whose symbol is Pb is

Accepted Answer

A)  lead. 
B)  antimony. 
C)  lanthanum. 
D)  phosphorus. 
E)  none of these. 
A)  lead. 
B)  antimony. 
C)  lanthanum. 
D)  phosphorus. 
E)  none of these.

Question 5

One of the following is $\underline{\text{ not }}$ a description of $\underline{\text{  gases. }}$Which one is it?

Accepted Answer

A)  easily compressed 
B)  particles in definite positions 
C)  relatively low densities 
D)  fills any container completely 
E)  expands infinitely on heating 
A)  easily compressed 
B)  particles in definite positions 
C)  relatively low densities 
D)  fills any container completely 
E)  expands infinitely on heating

Question 6

Use the figures below

Accepted Answer

A)    
B)    
C)    
D)    
E)   
-Which of the above figures represents a $\underline{\text{gaseous element}}$? 
A)  Figure A 
B)  Figure B 
C)  Figure C 
D)  Figure D 
E)  Figure E 
A)    
B)    
C)    
D)    
E)   
-Which of the above figures represents a $\underline{\text{gaseous element}}$? 
A)  Figure A 
B)  Figure B 
C)  Figure C 
D)  Figure D 
E)  Figure E

Question 7

Use the pictures below 
 
-Which of the above figures represents a $\underline{\text{gaseous compound}}$?

Accepted Answer

A)  Figure A 
B)  Figure B 
C)  Figure C 
D)  Figure D 
E)  Figure E 
A)  Figure A 
B)  Figure B 
C)  Figure C 
D)  Figure D 
E)  Figure E

Question 8

An intensive property of a substance is

Accepted Answer

A)  independent of the amount present. 
B)  dependent on its volume,but not its mass. 
C)  not affected by its temperature. 
D)  dependent only on its temperature. 
E)  dependent only on its mass and volume. 
A)  independent of the amount present. 
B)  dependent on its volume,but not its mass. 
C)  not affected by its temperature. 
D)  dependent only on its temperature. 
E)  dependent only on its mass and volume.

Question 9

A $\underline{\text{  theory }}$ is a ________.

Accepted Answer

A)  mathematical formula that models a pattern of behavior 
B)  set of quantitative data 
C)  well-tested unifying principle that explains a body of facts 
D)  tentative explanation or predication based upon experimental observations 
E)  set of experiments designed to test a theory 
A)  mathematical formula that models a pattern of behavior 
B)  set of quantitative data 
C)  well-tested unifying principle that explains a body of facts 
D)  tentative explanation or predication based upon experimental observations 
E)  set of experiments designed to test a theory

Question 10

What is the correct symbol for silver?

Accepted Answer

A)  S 
B)  Si 
C)  Ag 
D)  Sr 
E)  Au 
A)  S 
B)  Si 
C)  Ag 
D)  Sr 
E)  Au

Question 11

A number of the heaviest elements on the periodic table are named for famous scientists.Element number 106 was most likely named for which famous scientist?

Accepted Answer

A)  Alfred Nobel 
B)  Marie Curie 
C)  Albert Einstein 
D)  Glen Seaborg 
E)  Dmitri Mendeleev 
A)  Alfred Nobel 
B)  Marie Curie 
C)  Albert Einstein 
D)  Glen Seaborg 
E)  Dmitri Mendeleev

Question 12

Which of the following are extensive properties: mass,volume,and/or density?

Accepted Answer

A)  mass only 
B)  volume only 
C)  density only 
D)  mass and volume 
E)  volume and density 
A)  mass only 
B)  volume only 
C)  density only 
D)  mass and volume 
E)  volume and density

Question 13

Which of the following statements is/are CORRECT?
1)Atoms are the smallest particles of an element that retain the element's chemical properties.
2)Substances composed of only one type of atom are classified as elements.
3)Of the 118 known elements,only 48 occur naturally.

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  1,2,and 3 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  1,2,and 3

Question 14

Potential energy possessed by water at the top of a waterfall is known as ________ energy.

Accepted Answer

The answer of Potential energy possessed by water at the...

Question 15

Which of the following are likely to form a homogeneous mixture?
1) milk and ice cream blended together with chocolate syrup
2) an egg combined with milk and mixed with a whisk
3)1 gram table salt combined with 250 mL of water

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  1,2,and 3 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 
E)  1,2,and 3

Question 16

Which one of the following statements is not a comparison of physical properties?

Accepted Answer

A)  Potassium reacts with water more quickly than calcium reacts with water. 
B)  The electrical conductivity of aluminum is greater than copper. 
C)  The density of copper is less than the density of lead. 
D)  The solubility of NaCl in hot water is greater than the solubility in cold water. 
E)  The boiling point of water is greater than the boiling point of ethanol. 
A)  Potassium reacts with water more quickly than calcium reacts with water. 
B)  The electrical conductivity of aluminum is greater than copper. 
C)  The density of copper is less than the density of lead. 
D)  The solubility of NaCl in hot water is greater than the solubility in cold water. 
E)  The boiling point of water is greater than the boiling point of ethanol.

Question 17

An electrically charged atom or group of atoms is a(n)________.

Accepted Answer

A)  element 
B)  ion 
C)  molecule 
D)  heterogeneous mixture 
E)  solution 
A)  element 
B)  ion 
C)  molecule 
D)  heterogeneous mixture 
E)  solution

Question 18

What is the name of the element with the symbol Cr?

Accepted Answer

A)  cerium 
B)  carbon 
C)  chromium 
D)  cadmium 
E)  chlorine 
A)  cerium 
B)  carbon 
C)  chromium 
D)  cadmium 
E)  chlorine

Question 19

To ensure integrity in science,experimental results should be ________ and reported in sufficient detail that the experiment can be repeated by others.

Accepted Answer

The answer of To ensure integrity in science,experimental results should...

Question 20

Which of the following is $\underline{\text{  not  }}$ a mixture?

Accepted Answer

A)  ice cream 
B)  gasoline 
C)  skim milk 
D)  strawberry jam 
E)  baking soda (sodium bicarbonate) 
A)  ice cream 
B)  gasoline 
C)  skim milk 
D)  strawberry jam 
E)  baking soda (sodium bicarbonate)

Exam 1: Basic Concepts of Chemistry

A mass of 10 g of table salt dissolves in water to form a(n)________ mixture (i.e.,a mixture that is uniform throughout).

The law of ________ states that the total energy of the universe is constant.

The element whose symbol is Pb is

One of the following is not ‾\underline{\text{ not }} not ​ a description of gases. ‾\underline{\text{ gases. }} gases. ​ Which one is it?

Use the figures below A) B) C) D) E) -Which of the above figures represents a gaseous element‾\underline{\text{gaseous element}}gaseous element​ ?

Use the pictures below -Which of the above figures represents a gaseous compound‾\underline{\text{gaseous compound}}gaseous compound​ ?

An intensive property of a substance is

A theory ‾\underline{\text{ theory }} theory ​ is a ________.

What is the correct symbol for silver?

A number of the heaviest elements on the periodic table are named for famous scientists.Element number 106 was most likely named for which famous scientist?

Which of the following are extensive properties: mass,volume,and/or density?

Which of the following statements is/are CORRECT? 1)Atoms are the smallest particles of an element that retain the element's chemical properties. 2)Substances composed of only one type of atom are classified as elements. 3)Of the 118 known elements,only 48 occur naturally.

Potential energy possessed by water at the top of a waterfall is known as ________ energy.

Which of the following are likely to form a homogeneous mixture? 1) milk and ice cream blended together with chocolate syrup 2) an egg combined with milk and mixed with a whisk 3)1 gram table salt combined with 250 mL of water

Which one of the following statements is not a comparison of physical properties?

An electrically charged atom or group of atoms is a(n)________.

What is the name of the element with the symbol Cr?

To ensure integrity in science,experimental results should be ________ and reported in sufficient detail that the experiment can be repeated by others.

Which of the following is not ‾\underline{\text{ not }} not ​ a mixture?

Mathlets Review: The Tools of Quantitative Chemistry

Atoms, molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

The Structure of Atoms and Periodic Trends

Bonding and Molecular Structure

Bonding and Molecular Structure: Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

The Chemistry of Solids

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Reactivity: Chemical Equilibria

The Chemistry of Acids and Bases

Principles of Reactivity: Other Aspects of Aqueous Equilibria

Entropy and Free Energy

Principles of Reactivity: Electron Transfer Reactions

Environmental Chemistry Earths Environment,energy,and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Carbon: Not Just Another Element

Biochemistry

Nuclear Chemistry

Filters

One of the following is $\underline{\text{ not }}$ a description of $\underline{\text{ gases. }}$ Which one is it?

Use the pictures below $Use the pictures below -Which of the above figures represents a \underline{\text{gaseous compound}} ?$ -Which of the above figures represents a $\underline{\text{gaseous compound}}$ ?

A $\underline{\text{ theory }}$ is a ________.

Which of the following is $\underline{\text{ not }}$ a mixture?