Chemistry Final ACS Exam Questions
And Answers Rated A+ New Update
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Atomic Mass? - CORRECT ANSWER-Number of protons in the nucleus (number on the
left bottom corner of the chemical symbol)
Atomic Mass Number? - CORRECT ANSWER-Number of protons and neutrons
(number on the left upper corner of the chemical symbol)
Isotope? - CORRECT ANSWER-Atoms of the same element, but with different masses
(different number of neutrons)
STUDY ELECTRON CONFIGURATIONS - CORRECT ANSWER-STUDY ELECTRON
CONFIGURATIONS
Do columns or rows in the Periodic Table have similar patterns? - CORRECT
ANSWER-Columns (the "groups") have repeating patterns?
Which area of the Periodic Table has greater metallicness? - CORRECT ANSWER-Left
and down has greater metallicness
Which area of the PT has greater atomic size? - CORRECT ANSWER-Left and down
has a greater atomic size
Which area of the PT has greater ionization energy? - CORRECT ANSWER-Right side
and up has greater ionization energy
Which area of the PT has greater electronegativity? - CORRECT ANSWER-Right side
and up has greater electronegativiy, except the Noble Gases of 0 electronegativy
Ionic Bonding? - CORRECT ANSWER-Metal and a nonmetal. Give/take electrons
Covalent bonding? - CORRECT ANSWER-Nonmetal and a nonmetal. Share electrons.
VSEPR Theory? - CORRECT ANSWER-Valence Shell Electron Pair Repulsion
aka Valence e- pairs stay as far apart as possible
How do you determine polarity? - CORRECT ANSWER-Use the chart that has
electronegativity values, then subtract the elements in the compound from each other.
, Is water polar? - CORRECT ANSWER-Yes!
Combination Reaction? - CORRECT ANSWER-A + B --> AB
Decomposition Reaction? - CORRECT ANSWER-AB --> A + B
Single Replacement Reaction? - CORRECT ANSWER-AB + C --> AC + B
Double Replacement Reaction? - CORRECT ANSWER-AB + CD --> AD + CB
Combustion Reaction? - CORRECT ANSWER-C + H + O --> H2O + CO2 always
Avogadro's Number? - CORRECT ANSWER-6.022 x 10^23 particles = 1 mole
Molar Mass? - CORRECT ANSWER-gram/mole
Mole to Volume? - CORRECT ANSWER-1 mole = 22.4 L
Accuracy? - CORRECT ANSWER-Closeness of measurements to the TRUE VALUE of
what is being measured
Precision? - CORRECT ANSWER-Closeness of a SET of measurements
How do you calculate Percent Error? - CORRECT ANSWER-I experimental-accepted I
____________________ x 100
accepted value
Are zeros infront of non-zero digis significant? - CORRECT 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? -
CORRECT ANSWER-Yep!
ex: 9.100 is 4 sig figs
Addition/Subtraction in regards to sig figs? - CORRECT ANSWER-Round numbers to
the least number of decimal places
Multiplaction/Division in regards to sig figs? - CORRECT ANSWER-Round answers to
the least amount of sig figs
# of e- equal - CORRECT ANSWER-the # of p+
Empirical Formula vs Molecular Formula? - CORRECT ANSWER-Molecular = the
actual number of atoms in a compound
And Answers Rated A+ New Update
Assured Satisfaction
Atomic Mass? - CORRECT ANSWER-Number of protons in the nucleus (number on the
left bottom corner of the chemical symbol)
Atomic Mass Number? - CORRECT ANSWER-Number of protons and neutrons
(number on the left upper corner of the chemical symbol)
Isotope? - CORRECT ANSWER-Atoms of the same element, but with different masses
(different number of neutrons)
STUDY ELECTRON CONFIGURATIONS - CORRECT ANSWER-STUDY ELECTRON
CONFIGURATIONS
Do columns or rows in the Periodic Table have similar patterns? - CORRECT
ANSWER-Columns (the "groups") have repeating patterns?
Which area of the Periodic Table has greater metallicness? - CORRECT ANSWER-Left
and down has greater metallicness
Which area of the PT has greater atomic size? - CORRECT ANSWER-Left and down
has a greater atomic size
Which area of the PT has greater ionization energy? - CORRECT ANSWER-Right side
and up has greater ionization energy
Which area of the PT has greater electronegativity? - CORRECT ANSWER-Right side
and up has greater electronegativiy, except the Noble Gases of 0 electronegativy
Ionic Bonding? - CORRECT ANSWER-Metal and a nonmetal. Give/take electrons
Covalent bonding? - CORRECT ANSWER-Nonmetal and a nonmetal. Share electrons.
VSEPR Theory? - CORRECT ANSWER-Valence Shell Electron Pair Repulsion
aka Valence e- pairs stay as far apart as possible
How do you determine polarity? - CORRECT ANSWER-Use the chart that has
electronegativity values, then subtract the elements in the compound from each other.
, Is water polar? - CORRECT ANSWER-Yes!
Combination Reaction? - CORRECT ANSWER-A + B --> AB
Decomposition Reaction? - CORRECT ANSWER-AB --> A + B
Single Replacement Reaction? - CORRECT ANSWER-AB + C --> AC + B
Double Replacement Reaction? - CORRECT ANSWER-AB + CD --> AD + CB
Combustion Reaction? - CORRECT ANSWER-C + H + O --> H2O + CO2 always
Avogadro's Number? - CORRECT ANSWER-6.022 x 10^23 particles = 1 mole
Molar Mass? - CORRECT ANSWER-gram/mole
Mole to Volume? - CORRECT ANSWER-1 mole = 22.4 L
Accuracy? - CORRECT ANSWER-Closeness of measurements to the TRUE VALUE of
what is being measured
Precision? - CORRECT ANSWER-Closeness of a SET of measurements
How do you calculate Percent Error? - CORRECT ANSWER-I experimental-accepted I
____________________ x 100
accepted value
Are zeros infront of non-zero digis significant? - CORRECT 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? -
CORRECT ANSWER-Yep!
ex: 9.100 is 4 sig figs
Addition/Subtraction in regards to sig figs? - CORRECT ANSWER-Round numbers to
the least number of decimal places
Multiplaction/Division in regards to sig figs? - CORRECT ANSWER-Round answers to
the least amount of sig figs
# of e- equal - CORRECT ANSWER-the # of p+
Empirical Formula vs Molecular Formula? - CORRECT ANSWER-Molecular = the
actual number of atoms in a compound
