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