Question 1

Two or more substances in variable proportions,where the composition is variable throughout are

Accepted Answer

A)  a solution. 
B)  a homogeneous mixture. 
C)  a compound. 
D)  an amorphous solid. 
E)  a heterogeneous mixture. 
A)  a solution. 
B)  a homogeneous mixture. 
C)  a compound. 
D)  an amorphous solid. 
E)  a heterogeneous mixture.

Question 2

What does it mean to be an exact number? Give an example of an exact number.

Accepted Answer

An exact number has an infinite number o

Question 3

Which of the following is an example of extensive properties?

Accepted Answer

A)  mass 
B)  color 
C)  solubility 
D)  viscosity 
E)  taste 
A)  mass 
B)  color 
C)  solubility 
D)  viscosity 
E)  taste

Question 4

Which of the following represents a hypothesis?

Accepted Answer

A)  Sodium reacts with water to form sodium hydroxide and hydrogen gas. 
B)  Nitrogen gas is a fairly inert substance. 
C)  Nickel has a silvery sheen. 
D)  When a substance combusts, it combines with air. 
E)  When wood burns, heat is given off. 
A)  Sodium reacts with water to form sodium hydroxide and hydrogen gas. 
B)  Nitrogen gas is a fairly inert substance. 
C)  Nickel has a silvery sheen. 
D)  When a substance combusts, it combines with air. 
E)  When wood burns, heat is given off.

Question 5

How many mm are in 5.705 cm?

Accepted Answer

A)  5.705 × 101 mm 
B)  5.705 × 10-1 mm 
C)  5.705 × 10-2 mm 
D)  5.705 × 102 mm 
E)  5.705 × 103 mm 
A)  5.705 × 101 mm 
B)  5.705 × 10-1 mm 
C)  5.705 × 10-2 mm 
D)  5.705 × 102 mm 
E)  5.705 × 103 mm

Question 6

Convert 22 m3 to liters.

Accepted Answer

A)  2.2 × 10-2 L 
B)  2.2 L 
C)  2.2 × 102 L 
D)  2.2 × 104 L 
A)  2.2 × 10-2 L 
B)  2.2 L 
C)  2.2 × 102 L 
D)  2.2 × 104 L

Question 7

Which of the following is an example of physical change?

Accepted Answer

A)  Dew forms on a blade of grass. 
B)  A Halloween light stick glows after shaking. 
C)  browning meat 
D)  An oxygen balloon explodes when contacted with a flame. 
E)  None of the above is a physical change. 
A)  Dew forms on a blade of grass. 
B)  A Halloween light stick glows after shaking. 
C)  browning meat 
D)  An oxygen balloon explodes when contacted with a flame. 
E)  None of the above is a physical change.

Question 8

Define an atom.

Accepted Answer

An atom is the submicroscopic

Question 9

Which of the following is an example of a chemical change?

Accepted Answer

A)  coffee brewing 
B)  water boiling 
C)  leaves turning color in the fall 
D)  sugar dissolves in water 
E)  None of the above is a chemical change. 
A)  coffee brewing 
B)  water boiling 
C)  leaves turning color in the fall 
D)  sugar dissolves in water 
E)  None of the above is a chemical change.

Question 10

Identify a unit that is used for volume.

Accepted Answer

A)  cm3 
B)  g 
C)  in2 
D)  degrees Fahrenheit 
E)  km 
A)  cm3 
B)  g 
C)  in2 
D)  degrees Fahrenheit 
E)  km

Two or more substances in variable proportions,where the composition is variable throughout are

What does it mean to be an exact number? Give an example of an exact number.

Which of the following is an example of extensive properties?

Which of the following represents a hypothesis?

How many mm are in 5.705 cm?

Convert 22 m³ to liters.

Which of the following is an example of physical change?

Define an atom.

Which of the following is an example of a chemical change?

Identify a unit that is used for volume.

Atoms and Elements

Molecules,compounds,and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes,valence Bond Theory,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Exam 1: Matter, measurement, and Problem Solving

Two or more substances in variable proportions,where the composition is variable throughout are

What does it mean to be an exact number? Give an example of an exact number.

Which of the following is an example of extensive properties?

Which of the following represents a hypothesis?

How many mm are in 5.705 cm?

Convert 22 m3 to liters.

Which of the following is an example of physical change?

Define an atom.

Which of the following is an example of a chemical change?

Identify a unit that is used for volume.

Atoms and Elements

Molecules,compounds,and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes,valence Bond Theory,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Convert 22 m³ to liters.