CHEM300B EVP Unit VII Exam ACTUAL
QUESTIONS AND CORRECT ANSWERS
All of the following are acids except - CORRECT ANSWERS drain cleaner
All of the following are properties of acids except - CORRECT ANSWERS turn litmus
blue
All of the following are properties of bases except - CORRECT ANSWERS turn litmus
red
Oranges contain ascorbic acid. True or False? - CORRECT ANSWERS True
Sodium hydrogen carbonate is an antacid. True or False? - CORRECT ANSWERS True
An Arrhenius acid is a compound with - CORRECT ANSWERS ionizable hydrogen atoms
An Arrhenius base is a compound with - CORRECT ANSWERS ionizable OH group
CH3COOH is an Arrhenius base. True or False? - CORRECT ANSWERS False
All Arrhenius bases are completely ionizable. True or False? - CORRECT
ANSWERS False
A hydrogen ion is often referred to as a - CORRECT ANSWERS proton
,All of the following are true about ammonia except - CORRECT ANSWERS contains
hydroxide group
A Brønsted-Lowry acid-base reaction involves - CORRECT ANSWERS transfer of proton
Water can act as a Brønsted-Lowry acid. True or False? - CORRECT ANSWERS True
The hydroxide ion is a Brønsted-Lowry acid. True or False? - CORRECT
ANSWERS False
A Lewis acid - CORRECT ANSWERS accepts a pair of electrons to form a covalent bond
A Lewis base - CORRECT ANSWERS donates a pair of electrons to form a covalent bond
Ammonia can serve as a Lewis base. True or False? - CORRECT ANSWERS True
A Lewis base forms an ionized compound. True or False? - CORRECT ANSWERS False
Why did scientists develop three different classifications for acids and bases? - CORRECT
ANSWERS Scientists developed three different classifications for acids and bases because
it expanded the list reactions used to explain a general principle.
When two molecules of water collide, a ________ ion is formed. - CORRECT
ANSWERS hydronium
, The equilibrium constant for water is - CORRECT ANSWERS 1 x 10-14
The acidity of water is important for organisms that live in the water. True or False? - CORRECT
ANSWERS True
Water is a strong electrolyte. True or False? - CORRECT ANSWERS False
The Kw for water is - CORRECT ANSWERS [H+][OH-]
For a neutral solution, the [H+] is - CORRECT ANSWERS 1 x 10-7 M
The Kw quoted in the text is not influenced by temperature. True or False? - CORRECT
ANSWERS False
When HCl is added to water, the equilibrium shifts to the H2O(l) side. True or False? -
CORRECT ANSWERS True
A 3.0 M solution of HCl has a negative pH. True or False? - CORRECT ANSWERS True
The letters pH stand for hydrogen ion purity. True or False? - CORRECT
ANSWERS False
A solution with a pH value of 6 has a hydrogen ion concentration of - CORRECT
ANSWERS 1 x 10-6
QUESTIONS AND CORRECT ANSWERS
All of the following are acids except - CORRECT ANSWERS drain cleaner
All of the following are properties of acids except - CORRECT ANSWERS turn litmus
blue
All of the following are properties of bases except - CORRECT ANSWERS turn litmus
red
Oranges contain ascorbic acid. True or False? - CORRECT ANSWERS True
Sodium hydrogen carbonate is an antacid. True or False? - CORRECT ANSWERS True
An Arrhenius acid is a compound with - CORRECT ANSWERS ionizable hydrogen atoms
An Arrhenius base is a compound with - CORRECT ANSWERS ionizable OH group
CH3COOH is an Arrhenius base. True or False? - CORRECT ANSWERS False
All Arrhenius bases are completely ionizable. True or False? - CORRECT
ANSWERS False
A hydrogen ion is often referred to as a - CORRECT ANSWERS proton
,All of the following are true about ammonia except - CORRECT ANSWERS contains
hydroxide group
A Brønsted-Lowry acid-base reaction involves - CORRECT ANSWERS transfer of proton
Water can act as a Brønsted-Lowry acid. True or False? - CORRECT ANSWERS True
The hydroxide ion is a Brønsted-Lowry acid. True or False? - CORRECT
ANSWERS False
A Lewis acid - CORRECT ANSWERS accepts a pair of electrons to form a covalent bond
A Lewis base - CORRECT ANSWERS donates a pair of electrons to form a covalent bond
Ammonia can serve as a Lewis base. True or False? - CORRECT ANSWERS True
A Lewis base forms an ionized compound. True or False? - CORRECT ANSWERS False
Why did scientists develop three different classifications for acids and bases? - CORRECT
ANSWERS Scientists developed three different classifications for acids and bases because
it expanded the list reactions used to explain a general principle.
When two molecules of water collide, a ________ ion is formed. - CORRECT
ANSWERS hydronium
, The equilibrium constant for water is - CORRECT ANSWERS 1 x 10-14
The acidity of water is important for organisms that live in the water. True or False? - CORRECT
ANSWERS True
Water is a strong electrolyte. True or False? - CORRECT ANSWERS False
The Kw for water is - CORRECT ANSWERS [H+][OH-]
For a neutral solution, the [H+] is - CORRECT ANSWERS 1 x 10-7 M
The Kw quoted in the text is not influenced by temperature. True or False? - CORRECT
ANSWERS False
When HCl is added to water, the equilibrium shifts to the H2O(l) side. True or False? -
CORRECT ANSWERS True
A 3.0 M solution of HCl has a negative pH. True or False? - CORRECT ANSWERS True
The letters pH stand for hydrogen ion purity. True or False? - CORRECT
ANSWERS False
A solution with a pH value of 6 has a hydrogen ion concentration of - CORRECT
ANSWERS 1 x 10-6
