Question 1

Which subatomic particles carry a charge?

Accepted Answer

A)  Protons and neutrons 
B)  Neutrons and electrons 
C)  Protons and electrons 
D)  Neutrons only

Question 2

Match each term to its corresponding descriptive phrase.
-subatomic particle with no charge

Accepted Answer

A) Proton 
B) Neutron 
C) Electron 
D) Isotopes 
E) Ionic bonds
F)Covalent bonds
G)Octet rule
H)Atomic number
I)Atomic mass
J)Hydrogen bonds

Question 3

Chemical bonds formed by the sharing of electrons are called:

Accepted Answer

A)  ionic. 
B)  covalent. 
C)  hydrogen. 
D)  isotopic.

Question 4

Electrolytes are:

Accepted Answer

A)  organic compounds. 
B)  called cations if they have a negative charge. 
C)  called cations if they have a positive charge. 
D)  both A and B.

Question 5

Match each term to its corresponding descriptive phrase.
-atoms with the same number of protons but a different number of neutrons

Accepted Answer

A) Proton 
B) Neutron 
C) Electron 
D) Isotopes 
E) Ionic bonds
F)Covalent bonds
G)Octet rule
H)Atomic number
I)Atomic mass
J)Hydrogen bonds

Question 6

An ionic bond is formed by:

Accepted Answer

A)  two or more positive ions combining. 
B)  two or more negative ions combining. 
C)  a positive and a negative ion attracting each other. 
D)  sharing of a pair of electrons.

Question 7

The type of reaction most likely to release energy is a(n)_____ reaction.

Accepted Answer

A)  synthesis 
B)  decomposition 
C)  exchange 
D)  All of the above reactions are equally likely to release energy.

Question 8

Which lipid is part of vitamin D?

Accepted Answer

A)  Glycerol 
B)  Steroids 
C)  Prostaglandins 
D)  Fatty acids

Question 9

Match each term to its corresponding descriptive phrase.
-types of lipids that are called tissue hormones

Accepted Answer

A) Acid 
B) Base 
C) RNA 
D) DNA 
E) Carbohydrate
F)Fat
G)Steroid
H)Protein
I)Prostaglandins
J)ATP

Question 10

In the presence of a base,red litmus paper will:

Accepted Answer

A)  stay red. 
B)  turn blue. 
C)  turn green. 
D)  turn yellow.

Question 11

All of the following substances are organic except:

Accepted Answer

A)  lipids. 
B)  electrolytes. 
C)  carbohydrates. 
D)  proteins.

Question 12

Atomic weight is determined by the number of:

Accepted Answer

A)  protons and electrons. 
B)  neutrons and electrons. 
C)  neutrons, protons, and electrons. 
D)  protons and neutrons.

Question 13

Which of the following represent(s)properties of water?

Accepted Answer

A)  High specific heat 
B)  High heat of vaporization 
C)  Strong polarity 
D)  All of the above

Question 14

Which of the following bonds are the weakest?

Accepted Answer

A)  Ionic 
B)  Hydrogen 
C)  Electrovalent 
D)  Covalent

Question 15

Match each term to its corresponding descriptive phrase.
-indicates an atom will react until it has 8 electrons in its outermost energy level

Accepted Answer

A) Proton 
B) Neutron 
C) Electron 
D) Isotopes 
E) Ionic bonds
F)Covalent bonds
G)Octet rule
H)Atomic number
I)Atomic mass
J)Hydrogen bonds

Question 16

Match each term to its corresponding descriptive phrase.
-value determined by adding the number of protons and neutrons in an atom

Accepted Answer

A) Proton 
B) Neutron 
C) Electron 
D) Isotopes 
E) Ionic bonds
F)Covalent bonds
G)Octet rule
H)Atomic number
I)Atomic mass
J)Hydrogen bonds

Question 17

The octet rule refers to the:

Accepted Answer

A)  stability of the nucleus when the protons are in a multiple of 8. 
B)  stability of the atom when there are 8 electrons in the outermost energy level. 
C)  stable configuration of the nucleus when there are 8 more neutrons than protons. 
D)  principle that one atom can combine with a maximum of 8 other atoms.

Question 18

The reaction between hydrogen and oxygen needed to form water is an example of a:

Accepted Answer

A)  hydrogen bond. 
B)  synthesis reaction. 
C)  decomposition reaction. 
D)  None of the above is correct.

Question 19

Which lipid acts as a "tissue hormone"?

Accepted Answer

A)  Triglyceride 
B)  Prostaglandin 
C)  Steroid 
D)  Phospholipid

Question 20

Which of the following represents a trace element in the body?

Accepted Answer

A)  Sulfur 
B)  Chlorine 
C)  Iron 
D)  Phosphorus

Exam 2: B: The Chemical Basis of Life

Which subatomic particles carry a charge?

Match each term to its corresponding descriptive phrase. -subatomic particle with no charge

Chemical bonds formed by the sharing of electrons are called:

Electrolytes are:

Match each term to its corresponding descriptive phrase. -atoms with the same number of protons but a different number of neutrons

An ionic bond is formed by:

The type of reaction most likely to release energy is a(n) _____ reaction.

Which lipid is part of vitamin D?

Match each term to its corresponding descriptive phrase. -types of lipids that are called tissue hormones

In the presence of a base,red litmus paper will:

All of the following substances are organic except:

Atomic weight is determined by the number of:

Which of the following represent(s) properties of water?

Which of the following bonds are the weakest?

Match each term to its corresponding descriptive phrase. -indicates an atom will react until it has 8 electrons in its outermost energy level

Match each term to its corresponding descriptive phrase. -value determined by adding the number of protons and neutrons in an atom

The octet rule refers to the:

The reaction between hydrogen and oxygen needed to form water is an example of a:

Which lipid acts as a "tissue hormone"?

Which of the following represents a trace element in the body?