Home My courses BIOL 1121 - AY2021-T4 8 April - 14 April Self-Quiz Unit 1
Started on Wednesday, 14 April 2021, 9:14 AM
State Finished
Completed on Wednesday, 14 April 2021, 9:17 AM
Time taken 3 mins
Marks 10.00/10.00
Grade 100.00 out of 100.00
Question 1 Correct Mark 1.00 out of 1.00
If xenon has an atomic number of 54 and a mass number of 108, how many
neutrons does it have?
Select one:
a. 54
b. 27
c. 100
d. 108
Question 2 Correct Mark 1.00 out of 1.00
Atoms that vary in the number of neutrons found in their nuclei are called
__________.
Select one:
a. ions
b. neutrons
c. neutral atoms
d. isotopes
,Question 3 Correct Mark 1.00 out of 1.00
Potassium has an atomic number of 19. What is its electron con guration?
Select one:
a. shells 1 and 2 are full, and shell 3 has nine electrons
b. shells 1, 2 and 3 are full and shell 4 has three electrons
c. shells 1, 2 and 3 are full and shell 4 has one electron
d. shells 1, 2 and 3 are full and no other electrons are present
Question 4 Correct Mark 1.00 out of 1.00
Which type of bond represents a weak chemical bond?
Select one:
a. hydrogen bond
b. atomic bond
c. covalent bond
d. nonpolar covalent bond
Question 5 Correct Mark 1.00 out of 1.00
Which of the following statements is not true?
Select one:
a. Water is polar.
b. Water stabilizes temperature.
c. Water is essential for life.
d. Water is the most abundant molecule in the Earth’s atmosphere.
,Question 6 Correct Mark 1.00 out of 1.00
When acids are added to a solution, the pH should __________.
Select one:
a. decrease
b. increase
c. stay the same
d. cannot tell without testing
Question 7 Correct Mark 1.00 out of 1.00
A molecule that binds up excess hydrogen ions in a solution is called a(n)
__________.
Select one:
a. acid
b. isotope
c. base
d. donator
Question 8 Correct Mark 1.00 out of 1.00
Which of the following statements is true?
Select one:
a. Acids and bases cannot mix together.
b. Acids and bases will neutralize each other.
c. Acids, but not bases, can change the pH of a solution.
d. Acids donate hydroxide ions (OH–); bases donate hydrogen ions (H+).
, Question 9 Correct Mark 1.00 out of 1.00
Each carbon molecule can bond with as many as __________ other atom(s) or
molecule(s).
Select one:
a. one
b. two
c. six
d. four
Question 10 Correct Mark 1.00 out of 1.00
Which of the following is not a functional group that can bond with carbon?
Select one:
a. sodium
b. hydroxyl
c. phosphate
d. carbonyl
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Started on Wednesday, 14 April 2021, 9:14 AM
State Finished
Completed on Wednesday, 14 April 2021, 9:17 AM
Time taken 3 mins
Marks 10.00/10.00
Grade 100.00 out of 100.00
Question 1 Correct Mark 1.00 out of 1.00
If xenon has an atomic number of 54 and a mass number of 108, how many
neutrons does it have?
Select one:
a. 54
b. 27
c. 100
d. 108
Question 2 Correct Mark 1.00 out of 1.00
Atoms that vary in the number of neutrons found in their nuclei are called
__________.
Select one:
a. ions
b. neutrons
c. neutral atoms
d. isotopes
,Question 3 Correct Mark 1.00 out of 1.00
Potassium has an atomic number of 19. What is its electron con guration?
Select one:
a. shells 1 and 2 are full, and shell 3 has nine electrons
b. shells 1, 2 and 3 are full and shell 4 has three electrons
c. shells 1, 2 and 3 are full and shell 4 has one electron
d. shells 1, 2 and 3 are full and no other electrons are present
Question 4 Correct Mark 1.00 out of 1.00
Which type of bond represents a weak chemical bond?
Select one:
a. hydrogen bond
b. atomic bond
c. covalent bond
d. nonpolar covalent bond
Question 5 Correct Mark 1.00 out of 1.00
Which of the following statements is not true?
Select one:
a. Water is polar.
b. Water stabilizes temperature.
c. Water is essential for life.
d. Water is the most abundant molecule in the Earth’s atmosphere.
,Question 6 Correct Mark 1.00 out of 1.00
When acids are added to a solution, the pH should __________.
Select one:
a. decrease
b. increase
c. stay the same
d. cannot tell without testing
Question 7 Correct Mark 1.00 out of 1.00
A molecule that binds up excess hydrogen ions in a solution is called a(n)
__________.
Select one:
a. acid
b. isotope
c. base
d. donator
Question 8 Correct Mark 1.00 out of 1.00
Which of the following statements is true?
Select one:
a. Acids and bases cannot mix together.
b. Acids and bases will neutralize each other.
c. Acids, but not bases, can change the pH of a solution.
d. Acids donate hydroxide ions (OH–); bases donate hydrogen ions (H+).
, Question 9 Correct Mark 1.00 out of 1.00
Each carbon molecule can bond with as many as __________ other atom(s) or
molecule(s).
Select one:
a. one
b. two
c. six
d. four
Question 10 Correct Mark 1.00 out of 1.00
Which of the following is not a functional group that can bond with carbon?
Select one:
a. sodium
b. hydroxyl
c. phosphate
d. carbonyl
◄ Sustainability Student Experience and Impact Survey
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