Test Bank: Introductory Chemistry 9th Edition by Zumdahl - Ch.
1-19, 9781337679909, with Rationales
How long will it take for a 5gram tritiam sample to decay down to 0.313? The half life is 12 years. -
ANSWER:48 Years
Which of the following bonds would you expect to be ionic?
A.) N-O
B.) Na-F
C.) C-S
D.) F-F - ANSWER:Na- F
Which of the following anions has its number of Oxygen atoms not equal to 4?
A.) Permanganate
B.) Hydrogen Phosphate
C.) Perchlorate
D.) Nitrate - ANSWER:Nitrate
Which of the following is bent with 118° around the central atom?
A.) Boron trifluoride (BF3)
B.) Ammonia (NH3)
C.) Sulfer Dioxide (SO2) - ANSWER:Sulfer Dioxide (SO2)
Which of the following is correct about the bent structure?
A.) Shape of Ammonia
B.) Has 3 bonding and 1 lone pair
C.) Has angles around central atoms close to 105°
D.) All of the above - ANSWER:Has angles around central atoms close to 105°
Which of the following is most soluble in water?
A.) CO2
B.) N2
C.) NH3
D.) CCl4 - ANSWER:NH3
True or False: Energy is released as 2 atoms. Such as; hydrogen atoms form a bond. - ANSWER:True
True or False: Carbon Tetrachloride (CCl4) contains polar bonds & is a polar molecule. - ANSWER:False
How many resonance structures are in Nitrate? - ANSWER:3
True or False: H2O & H2O2 have identical properties. - ANSWER:False
H2CO3 is called? - ANSWER:carbonic acid
Which of the following acids does not have an ic ending?
A.) H2SO4
B.) HCN
C.) HF
, D.) H2SO3 - ANSWER:H2SO3
Isotopes have__________? - ANSWER:The same number of protons but different number of
neutrons.
The n/p ratio of stable isotopes becomes larger than 1, when the atomic number is larger
than__________.
A.) 10
B.) 20
C.) 18
D.) 24 - ANSWER:20
The only element whose most stable isotope has n/p <1 is__________. - ANSWER:Hydrogen
An alpha particle may be represented by____________. - ANSWER:4He
An beta particle may be represented by_________.
A.) 4He
B.) 1H
C.) 1n
D.) 0
-1 e - ANSWER:0
-1 e
An gamma particle may be represented by_________. - ANSWER:0
0Y
Which is the lightest among the following particles?
A.) beta particle
B.) alpha particle
C.) proton
D.) neutron - ANSWER:beta particle
Which of the following is the heaviest particle?
A.) deuterium
B.) alpha particle
C.) neutron
D.)beta particle - ANSWER:alpha particle
Mass defect is _________. - ANSWER:The amount of mass that is converted to energy during a
nuclear reaction.
Which of the following is able to penetrate the easiest through human tissue?
A.) alpha rays
B.) beta rays
C.) gamma rays
D.) neutrons - ANSWER:gamma rays
Which of the following transformation is not an electron capture?
A.) 81Rb ---> 81Kr
B.) p ---> n
1-19, 9781337679909, with Rationales
How long will it take for a 5gram tritiam sample to decay down to 0.313? The half life is 12 years. -
ANSWER:48 Years
Which of the following bonds would you expect to be ionic?
A.) N-O
B.) Na-F
C.) C-S
D.) F-F - ANSWER:Na- F
Which of the following anions has its number of Oxygen atoms not equal to 4?
A.) Permanganate
B.) Hydrogen Phosphate
C.) Perchlorate
D.) Nitrate - ANSWER:Nitrate
Which of the following is bent with 118° around the central atom?
A.) Boron trifluoride (BF3)
B.) Ammonia (NH3)
C.) Sulfer Dioxide (SO2) - ANSWER:Sulfer Dioxide (SO2)
Which of the following is correct about the bent structure?
A.) Shape of Ammonia
B.) Has 3 bonding and 1 lone pair
C.) Has angles around central atoms close to 105°
D.) All of the above - ANSWER:Has angles around central atoms close to 105°
Which of the following is most soluble in water?
A.) CO2
B.) N2
C.) NH3
D.) CCl4 - ANSWER:NH3
True or False: Energy is released as 2 atoms. Such as; hydrogen atoms form a bond. - ANSWER:True
True or False: Carbon Tetrachloride (CCl4) contains polar bonds & is a polar molecule. - ANSWER:False
How many resonance structures are in Nitrate? - ANSWER:3
True or False: H2O & H2O2 have identical properties. - ANSWER:False
H2CO3 is called? - ANSWER:carbonic acid
Which of the following acids does not have an ic ending?
A.) H2SO4
B.) HCN
C.) HF
, D.) H2SO3 - ANSWER:H2SO3
Isotopes have__________? - ANSWER:The same number of protons but different number of
neutrons.
The n/p ratio of stable isotopes becomes larger than 1, when the atomic number is larger
than__________.
A.) 10
B.) 20
C.) 18
D.) 24 - ANSWER:20
The only element whose most stable isotope has n/p <1 is__________. - ANSWER:Hydrogen
An alpha particle may be represented by____________. - ANSWER:4He
An beta particle may be represented by_________.
A.) 4He
B.) 1H
C.) 1n
D.) 0
-1 e - ANSWER:0
-1 e
An gamma particle may be represented by_________. - ANSWER:0
0Y
Which is the lightest among the following particles?
A.) beta particle
B.) alpha particle
C.) proton
D.) neutron - ANSWER:beta particle
Which of the following is the heaviest particle?
A.) deuterium
B.) alpha particle
C.) neutron
D.)beta particle - ANSWER:alpha particle
Mass defect is _________. - ANSWER:The amount of mass that is converted to energy during a
nuclear reaction.
Which of the following is able to penetrate the easiest through human tissue?
A.) alpha rays
B.) beta rays
C.) gamma rays
D.) neutrons - ANSWER:gamma rays
Which of the following transformation is not an electron capture?
A.) 81Rb ---> 81Kr
B.) p ---> n
