Bio 2010 - Microbiology » Summer 2023 » Chapter 2 Quiz
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Bio 2010 - Microbiology ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
Which are the outermost electrons of an atom?
A.
Ionic electrons
B.
Covalent electrons
C.
Electric electrons
D.
Valence electrons
Question #2
What does a buffer do?
A.
It maintains the amount of acid in a solution
B.
It keeps the pH of a solution from changing very much.
C.
It maintains the amount of base in a solution.
D.
It prevents the pH of a solution from changing at all.
Question #3
In most atoms the number of protons and electrons is
A.
variable, depending upon the atomic mass of the element.
B.
different, with the number of electrons being greater.
C.
different, with the number of protons being greater.
D.
the same.
Question #4
_________ are substances composed of two or more different atoms bonded together. chemically.
A.
Compounds
B.
Isotopes
C.
Ions
D.
Elements
Question #5
Which of the following types of bonds can be dissociated by water?
A.
hydrogen bonds
B.
ionic bonds
C.
nonpolar covalent bonds
D.
polar covalent bonds
Question #6
Anything that occupies space and has mass is called:
A.
a solid
B.
a compound
C.
an element
D.
matter
Question #7
A pure substance that is composed of a unique atomic arrangement is called an:
A.
a solid
B.
a compound
C.
matter
D.
an element
Question #8
A chemical bond formed by the equal sharing of one or more pairs of electrons between outer shells of two atoms is called a(n):
A.
polar covalent bond
B.
non-polar covalent bond
C.
ionic bond
D.
hydrogen bond
Question #9
As the concentration of hydrogen ions increases, the pH goes:
A.
down and the solution becomes more acidic
B.
up and the solution becomes more basic
C.
down and the solution becomes more basic
D.
up and the solution becomes more acidic
Question #10
On the Periodic table of Elements, potassium’s (K) atomic number is 19. It also is in the first group and has four periods. Which of the following is the correct electron configuration for potassium?
A.
2, 12, 4, 1
B.
2, 8, 12, 1
C.
2, 4, 4, 8 ,1
D.
2, 8, 8, 1
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Bio 2010 - Microbiology ] course for $25 USD.
Existing Quiz Clients Login here