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ACS CHEMISTRY GENERAL EXAM 2024 ACTUAL EXAM 2 VERSIONS (VERSION A AND B) COMPLETE 400 QUESTIONS WITH DETAILED VERIFIED ANSWERS /ALREADY GRADED A+$13.99
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ACS CHEMISTRY GENERAL EXAM 2024 ACTUAL
EXAM 2 VERSIONS (VERSION A AND B) COMPLETE
400 QUESTIONS WITH DETAILED VERIFIED
ANSWERS /ALREADY GRADED A+
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
Ionic Bonding? ...ANSWER... Metal and a nonmetal. Give/take
electrons
Covalent bonding? ...ANSWER... Nonmetal and a nonmetal. Share
electrons.
VSEPR Theory? ...ANSWER... Valence Shell Electron Pair Repulsion
aka Valence e- pairs stay as far apart as possible
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