1|Page
STRAIGHTERLINE CHEMISTRY FINAL EXAM 2025 | ACCURATE
REAL EXAM QUESTIONS WITH VERIFIED ANSWERS | LATEST
UPDATE | CONTAINS AN ADDITIONAL PRACTICE EXAM AND
STUDY GUIDE AT THE END
Which one of the following formulas of ionic compounds is the least likely to be correct?
Select one:
a. NH4Cl
b. Ba(OH)2
c. Na2SO4
d. Ca2NO3
e. Cu(CN)2 - ANSWER-d. Ca2NO3
What is the name of ClO - ion?
Select one:
a. hypochlorite
b. chlorate
c. chlorite
d. perchlorate
e. perchlorite - ANSWER-a. hypochlorite
Which of the following is a molecular formula for a compound with an empirical formula of
CH?
Select one:
a. C2H6
b. C3H9
,2|Page
c. C4H10
d. C6H6
e. None of the answers is correct. - ANSWER-d. C6H6
Which is the correct electron configuration for gold?
Select one:
a. [Xe]4f145d96s2
b. [Xe]4f145d106s2
c. [Xe]4f135d106s2
d. [Xe]4f145d106s1
e. None of the electron configurations is correct. - ANSWER-d. [Xe]4f145d106s1
A(n) _________ is a point at which a standing wave has zero amplitude.
Select one:
a. crevice
b. node
c. pit
d. burrow
e. orbital - ANSWER-b. node
The Pauli exclusion principle states that no ____ electrons within an atom can have the same
____ quantum numbers.
Select one:
a. 4; 6
b. 2; 4
,3|Page
c. 3; 6
d. 6; 10
e. 3; 8 - ANSWER-b. 2; 4
Emission spectra
Select one:
a. cannot be used to identify an unknown atom.
b. can be used to identify unknown atoms.
c. can be explained by the movement of protons colliding with electrons.
d. none of the. - ANSWER-b. can be used to identify unknown atoms.
Which one of the following equations correctly represents the process relating to the
ionization energy of X?
Select one:
a. X(s) → X+(g) + e-
b. X2(g) → X+(g) + X-(g)
c. X(g) + e- → X-(g)
d. X-(g) → X(g) + e-
e. X(g) → X+(g) + e- - ANSWER-e. X(g) → X+(g) + e-
Consider the element with the electron configuration [Kr]5s24d105p5. This element is
Select one:
a. a halogen.
b. a transition metal.
c. an alkali metal.
, 4|Page
d. an actinide element.
e. a noble gas. - ANSWER-a. a halogen.
Consider the element with the electron configuration [Kr]5s24d7. This element is
Select one:
a. a halogen.
b. a transition metal.
c. a nonmetal.
d. an actinide element.
e. a noble gas. - ANSWER-b. a transition metal.
How does atomic radius change as you move across the periodic table?
Select one:
a. Atomic radius decreases moving from left to right across a period and increases from top to
bottom.
b. Atomic radius increases moving left to right across a period and decreases from top to
bottom.
c. Smaller nuclear charge lowers energy; more electrons in an orbital lowers energy.
d. Atomic radius increases diagonally across the periodic table.
e. None of the answers is correct. - ANSWER-a. Atomic radius decreases moving from left to
right across a period and increases from top to bottom.
Which of these choices is the electron configuration of the iron(III) ion?
Select one:
a. [Ar]3d5
b. [Ar]4s13d5
c. [Ar]4s23d3
STRAIGHTERLINE CHEMISTRY FINAL EXAM 2025 | ACCURATE
REAL EXAM QUESTIONS WITH VERIFIED ANSWERS | LATEST
UPDATE | CONTAINS AN ADDITIONAL PRACTICE EXAM AND
STUDY GUIDE AT THE END
Which one of the following formulas of ionic compounds is the least likely to be correct?
Select one:
a. NH4Cl
b. Ba(OH)2
c. Na2SO4
d. Ca2NO3
e. Cu(CN)2 - ANSWER-d. Ca2NO3
What is the name of ClO - ion?
Select one:
a. hypochlorite
b. chlorate
c. chlorite
d. perchlorate
e. perchlorite - ANSWER-a. hypochlorite
Which of the following is a molecular formula for a compound with an empirical formula of
CH?
Select one:
a. C2H6
b. C3H9
,2|Page
c. C4H10
d. C6H6
e. None of the answers is correct. - ANSWER-d. C6H6
Which is the correct electron configuration for gold?
Select one:
a. [Xe]4f145d96s2
b. [Xe]4f145d106s2
c. [Xe]4f135d106s2
d. [Xe]4f145d106s1
e. None of the electron configurations is correct. - ANSWER-d. [Xe]4f145d106s1
A(n) _________ is a point at which a standing wave has zero amplitude.
Select one:
a. crevice
b. node
c. pit
d. burrow
e. orbital - ANSWER-b. node
The Pauli exclusion principle states that no ____ electrons within an atom can have the same
____ quantum numbers.
Select one:
a. 4; 6
b. 2; 4
,3|Page
c. 3; 6
d. 6; 10
e. 3; 8 - ANSWER-b. 2; 4
Emission spectra
Select one:
a. cannot be used to identify an unknown atom.
b. can be used to identify unknown atoms.
c. can be explained by the movement of protons colliding with electrons.
d. none of the. - ANSWER-b. can be used to identify unknown atoms.
Which one of the following equations correctly represents the process relating to the
ionization energy of X?
Select one:
a. X(s) → X+(g) + e-
b. X2(g) → X+(g) + X-(g)
c. X(g) + e- → X-(g)
d. X-(g) → X(g) + e-
e. X(g) → X+(g) + e- - ANSWER-e. X(g) → X+(g) + e-
Consider the element with the electron configuration [Kr]5s24d105p5. This element is
Select one:
a. a halogen.
b. a transition metal.
c. an alkali metal.
, 4|Page
d. an actinide element.
e. a noble gas. - ANSWER-a. a halogen.
Consider the element with the electron configuration [Kr]5s24d7. This element is
Select one:
a. a halogen.
b. a transition metal.
c. a nonmetal.
d. an actinide element.
e. a noble gas. - ANSWER-b. a transition metal.
How does atomic radius change as you move across the periodic table?
Select one:
a. Atomic radius decreases moving from left to right across a period and increases from top to
bottom.
b. Atomic radius increases moving left to right across a period and decreases from top to
bottom.
c. Smaller nuclear charge lowers energy; more electrons in an orbital lowers energy.
d. Atomic radius increases diagonally across the periodic table.
e. None of the answers is correct. - ANSWER-a. Atomic radius decreases moving from left to
right across a period and increases from top to bottom.
Which of these choices is the electron configuration of the iron(III) ion?
Select one:
a. [Ar]3d5
b. [Ar]4s13d5
c. [Ar]4s23d3
