Question 1

Aluminum, salt, and coffee are:

Accepted Answer

A)  an element, a homogeneous mixture, and a pure substance. 
B)  a pure substance, a heterogeneous mixture, and a pure substance. 
C)  a homogeneous mixture, a pure substance, and a homogeneous mixture. 
D)  an element, a pure substance, and a homogeneous mixture. 
E)  none of these. 
A)  an element, a homogeneous mixture, and a pure substance. 
B)  a pure substance, a heterogeneous mixture, and a pure substance. 
C)  a homogeneous mixture, a pure substance, and a homogeneous mixture. 
D)  an element, a pure substance, and a homogeneous mixture. 
E)  none of these.

Question 2

Which of the following is not a chemical property of water?

Accepted Answer

A)  Water interacts with some metals to produce hydrogen gas. 
B)  Water combines with carbon dioxide in plants to produce starches and sugars. 
C)  Water boils at 100 degrees Celsius. 
D)  Water combines with sulfur dioxide and oxygen to produce sulfuric acid. 
E)  Water and carbon dioxide are produced by the combustion of fossil fuels. 
A)  Water interacts with some metals to produce hydrogen gas. 
B)  Water combines with carbon dioxide in plants to produce starches and sugars. 
C)  Water boils at 100 degrees Celsius. 
D)  Water combines with sulfur dioxide and oxygen to produce sulfuric acid. 
E)  Water and carbon dioxide are produced by the combustion of fossil fuels.

Question 3

According to the Kinetic Molecular Theory, as the temperature of a compound increases:

Accepted Answer

A)  its molecular motion increases 
B)  its melting point increases 
C)  it freezes 
D)  its boiling point increases 
E)  all of these 
A)  its molecular motion increases 
B)  its melting point increases 
C)  it freezes 
D)  its boiling point increases 
E)  all of these

Question 4

How many atoms are in a diatomic molecule?.

Accepted Answer

The answer of How many atoms are in a diatomic...

Question 5

Bacteria, sugar molecules, and water droplets are matter at the:

Accepted Answer

A)  microscale, nanoscale, macroscale. 
B)  microscale, macroscale, nanoscale. 
C)  macroscale, nanoscale, microscale. 
D)  nanoscale, microscale, macroscale. 
E)  none of these. 
A)  microscale, nanoscale, macroscale. 
B)  microscale, macroscale, nanoscale. 
C)  macroscale, nanoscale, microscale. 
D)  nanoscale, microscale, macroscale. 
E)  none of these.

Question 6

A sample has a mass of 612 g and a volume of 78 cm3. What is the identity of the sample?

Accepted Answer

A)  mercury (density = 13.6 g/cm3) 
B)  iron (density = 7.86 g/cm3) 
C)  copper (density = 8.92 g/cm3) 
D)  silver (density = 10.5 g/cm3) 
E)  aluminum (density = 2.7 g/cm3) 
A)  mercury (density = 13.6 g/cm3) 
B)  iron (density = 7.86 g/cm3) 
C)  copper (density = 8.92 g/cm3) 
D)  silver (density = 10.5 g/cm3) 
E)  aluminum (density = 2.7 g/cm3)

Question 7

Which of the following is not a metal?

Accepted Answer

A)  nickel (Ni, atomic number 28) 
B)  sulfur (S, atomic number 16) 
C)  lithium (Li, atomic number 3) 
D)  uranium (U, atomic number 92) 
E)  calcium (Ca, atomic number 20) 
A)  nickel (Ni, atomic number 28) 
B)  sulfur (S, atomic number 16) 
C)  lithium (Li, atomic number 3) 
D)  uranium (U, atomic number 92) 
E)  calcium (Ca, atomic number 20)

Question 8

Which is the best definition of a pure substance?

Accepted Answer

A)  A material that contains two or more types of atoms 
B)  A material in the gas phase 
C)  A material whose properties cannot be changed by further physical separation 
D)  A material whose properties have been measured 
E)  A material that has been heated 
A)  A material that contains two or more types of atoms 
B)  A material in the gas phase 
C)  A material whose properties cannot be changed by further physical separation 
D)  A material whose properties have been measured 
E)  A material that has been heated

Aluminum, salt, and coffee are:

Which of the following is not a chemical property of water?

According to the Kinetic Molecular Theory, as the temperature of a compound increases:

How many atoms are in a diatomic molecule?.

Bacteria, sugar molecules, and water droplets are matter at the:

A sample has a mass of 612 g and a volume of 78 cm³. What is the identity of the sample?

Which of the following is not a metal?

Which is the best definition of a pure substance?

Atoms and Elements

Chemical Compounds

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Liquids, Solids, and Materials

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

Exam 1: The Nature of Chemistry

Aluminum, salt, and coffee are:

Which of the following is not a chemical property of water?

According to the Kinetic Molecular Theory, as the temperature of a compound increases:

How many atoms are in a diatomic molecule?.

Bacteria, sugar molecules, and water droplets are matter at the:

A sample has a mass of 612 g and a volume of 78 cm3. What is the identity of the sample?

Which of the following is not a metal?

Which is the best definition of a pure substance?

Atoms and Elements

Chemical Compounds

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Liquids, Solids, and Materials

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

A sample has a mass of 612 g and a volume of 78 cm³. What is the identity of the sample?