Question 1

By definition,the gain of electrons by an atom or ion is called

Accepted Answer

A)  neutralization. 
B)  reduction. 
C)  oxidation. 
D)  displacement. 
A)  neutralization. 
B)  reduction. 
C)  oxidation. 
D)  displacement.

Question 2

In chemical equations,numbers placed before formulas are known as ______________.

Accepted Answer

The answer of In chemical equations,numbers placed before formulas are...

Question 3

A substance that speeds up a chemical reaction but is not consumed is a(n)______________.

Accepted Answer

The answer of A substance that speeds up a chemical...

Question 4

How many moles would 44 g of carbon dioxide,CO2,be?

Accepted Answer

A)  3.0 
B)  2.0 
C)  1.0 
D)  None of these 
A)  3.0 
B)  2.0 
C)  1.0 
D)  None of these

Question 5

Changes that do not alter the chemical composition of a substance are called ______________ changes.

Accepted Answer

The answer of Changes that do not alter the chemical...

Question 6

A solution with a pH of 1 is

Accepted Answer

A)  strongly acidic. 
B)  weakly basic. 
C)  strongly basic. 
D)  weakly acidic. 
A)  strongly acidic. 
B)  weakly basic. 
C)  strongly basic. 
D)  weakly acidic.

Question 7

Which one of the following is not a physical property of matter?

Accepted Answer

A)  Specific heat 
B)  Boiling point 
C)  Density 
D)  Flammability 
A)  Specific heat 
B)  Boiling point 
C)  Density 
D)  Flammability

Question 8

The equation 1H2SO4 → 1H2O + 4O2 is not appropriately written because

Accepted Answer

A)  oxygen is not diatomic. 
B)  fractional coefficients are not generally used. 
C)  the number of atoms of each element on each side is not the same. 
D)  the simplest set of coefficients has not been used. 
A)  oxygen is not diatomic. 
B)  fractional coefficients are not generally used. 
C)  the number of atoms of each element on each side is not the same. 
D)  the simplest set of coefficients has not been used.

Question 9

In order,from top to bottom,in the activity series come K,Zn,Pb,H,Cu,and Au.Therefore,

Accepted Answer

A)  adding Pb to ZnCl2 will release Zn. 
B)  adding Cu to HCl will release hydrogen. 
C)  adding Au to HCl will release hydrogen. 
D)  adding Cu to AuCl3 will release Au. 
A)  adding Pb to ZnCl2 will release Zn. 
B)  adding Cu to HCl will release hydrogen. 
C)  adding Au to HCl will release hydrogen. 
D)  adding Cu to AuCl3 will release Au.

Question 10

In the reaction 2Al + 3F2→ 2AlF3,the fluorine

Accepted Answer

A)  is reduced. 
B)  loses electrons. 
C)  is oxidized. 
D)  is the catalyst. 
A)  is reduced. 
B)  loses electrons. 
C)  is oxidized. 
D)  is the catalyst.

By definition,the gain of electrons by an atom or ion is called

In chemical equations,numbers placed before formulas are known as ______________.

A substance that speeds up a chemical reaction but is not consumed is a(n)______________.

How many moles would 44 g of carbon dioxide,CO₂,be?

Changes that do not alter the chemical composition of a substance are called ______________ changes.

A solution with a pH of 1 is

Which one of the following is not a physical property of matter?

The equation 1H₂SO₄ → 1H₂O + 4O₂ is not appropriately written because

In order,from top to bottom,in the activity series come K,Zn,Pb,H,Cu,and Au.Therefore,

In the reaction 2Al + 3F₂→ 2AlF₃,the fluorine

Measurement

Motion

Force and Motion

Work and Energy

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Organic Chemistry

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural G Eology and P Late Tectonics

Minerals, rocks, and Volcanoes

Surface Processes

Geologic Time

Filters

Exam 13: Chemical Reactions

By definition,the gain of electrons by an atom or ion is called

In chemical equations,numbers placed before formulas are known as ______________.

A substance that speeds up a chemical reaction but is not consumed is a(n)______________.

How many moles would 44 g of carbon dioxide,CO2,be?

Changes that do not alter the chemical composition of a substance are called ______________ changes.

A solution with a pH of 1 is

Which one of the following is not a physical property of matter?

The equation 1H2SO4 → 1H2O + 4O2 is not appropriately written because

In order,from top to bottom,in the activity series come K,Zn,Pb,H,Cu,and Au.Therefore,

In the reaction 2Al + 3F2→ 2AlF3,the fluorine

Measurement

Motion

Force and Motion

Work and Energy

Temperature and Heat

Waves and Sound

Optics and Wave Effects

Electricity and Magnetism

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Organic Chemistry

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural G Eology and P Late Tectonics

Minerals, rocks, and Volcanoes

Surface Processes

Geologic Time

Filters

How many moles would 44 g of carbon dioxide,CO₂,be?

The equation 1H₂SO₄ → 1H₂O + 4O₂ is not appropriately written because

In the reaction 2Al + 3F₂→ 2AlF₃,the fluorine