Chemistry Final ACS Exam
Questions and Answers 100%
PASS
Accuracy?—ANSWER-Closeness of measurements to the TRUE VALUE of
what is being measured
Precision?—ANSWER-Closeness of a SET of measurements
How do you calculate Percent Error?—ANSWER-I experimental-accepted I
____________________ x 100
accepted value
Are zeros infront of non-zero digis significant?—ANSWER-Nope!
ex: 0.0071 is only 2 sig figs
Are zeros at the end of a number and to the right of the decimal
significant?—ANSWER-Yep!
ex: 9.100 is 4 sig figs
Addition/Subtraction in regards to sig figs?—ANSWER-Round numbers to
the least number of decimal places
, Multiplaction/Division in regards to sig figs?—ANSWER-Round answers to
the least amount of sig figs
# of e- equal—ANSWER-the # of p+
Atomic Mass?—ANSWER-Number of protons in the nucleus (number on the
left bottom corner of the chemical symbol)
Atomic Mass Number?—ANSWER-Number of protons and neutrons (number
on the left upper corner of the chemical symbol)
Isotope?—ANSWER-Atoms of the same element, but with different masses
(different number of neutrons)
STUDY ELECTRON CONFIGURATIONS—ANSWER-STUDY ELECTRON
CONFIGURATIONS
Do columns or rows in the Periodic Table have similar patterns?—ANSWER-
Columns (the "groups") have repeating patterns?
Which area of the Periodic Table has greater metallicness?—ANSWER-Left
and down has greater metallicness
Which area of the PT has greater atomic size?—ANSWER-Left and down has
a greater atomic size
Which area of the PT has greater ionization energy?—ANSWER-Right side
and up has greater ionization energy
Which area of the PT has greater electronegativity?—ANSWER-Right side
and up has greater electronegativiy, except the Noble Gases of 0
electronegativy
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
Questions and Answers 100%
PASS
Accuracy?—ANSWER-Closeness of measurements to the TRUE VALUE of
what is being measured
Precision?—ANSWER-Closeness of a SET of measurements
How do you calculate Percent Error?—ANSWER-I experimental-accepted I
____________________ x 100
accepted value
Are zeros infront of non-zero digis significant?—ANSWER-Nope!
ex: 0.0071 is only 2 sig figs
Are zeros at the end of a number and to the right of the decimal
significant?—ANSWER-Yep!
ex: 9.100 is 4 sig figs
Addition/Subtraction in regards to sig figs?—ANSWER-Round numbers to
the least number of decimal places
, Multiplaction/Division in regards to sig figs?—ANSWER-Round answers to
the least amount of sig figs
# of e- equal—ANSWER-the # of p+
Atomic Mass?—ANSWER-Number of protons in the nucleus (number on the
left bottom corner of the chemical symbol)
Atomic Mass Number?—ANSWER-Number of protons and neutrons (number
on the left upper corner of the chemical symbol)
Isotope?—ANSWER-Atoms of the same element, but with different masses
(different number of neutrons)
STUDY ELECTRON CONFIGURATIONS—ANSWER-STUDY ELECTRON
CONFIGURATIONS
Do columns or rows in the Periodic Table have similar patterns?—ANSWER-
Columns (the "groups") have repeating patterns?
Which area of the Periodic Table has greater metallicness?—ANSWER-Left
and down has greater metallicness
Which area of the PT has greater atomic size?—ANSWER-Left and down has
a greater atomic size
Which area of the PT has greater ionization energy?—ANSWER-Right side
and up has greater ionization energy
Which area of the PT has greater electronegativity?—ANSWER-Right side
and up has greater electronegativiy, except the Noble Gases of 0
electronegativy
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law
