ACS CHEMISTRY 2024 FINAL EXAM QUESTIONS WITH ALL CORRECT ANSWERS
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Course
ACS CHEMISTRY
Institution
ACS CHEMISTRY
ACS CHEMISTRY 2024 FINAL EXAM QUESTIONS WITH ALL CORRECT ANSWERS
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 ...
ACS CHEMISTRY 2024 FINAL EXAM
QUESTIONS WITH ALL CORRECT
ANSWERS
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
How do you determine polarity? - Answer- Use the chart that has electronegativity
values, then subtract the elements in the compound from each other.
Is water polar? - Answer- Yes!
Combination Reaction? - Answer- A + B --> AB
Decomposition Reaction? - Answer- AB --> A + B
Single Replacement Reaction? - Answer- AB + C --> AC + B
Double Replacement Reaction? - Answer- AB + CD --> AD + CB
Combustion Reaction? - Answer- C + H + O --> H2O + CO2 always
Empirical Formula vs Molecular Formula? - Answer- Molecular = the actual number of
atoms in a compound
Empirical = basic ratio, smallest whole numbers of atoms in a compound
Percent Composition? - Answer- Mass element/mass compound x 100
Limiting Reactant? - Answer- The reactant which runs out first...meaning it limits how
much product can be made
ex: If there's 1 mole of NaOH and 2 moles of HCl, NaOH is the limiting reactant,
because it is used up (only 1 mole)
Which state of matter has the greatest Kinetic Energy? - Answer- Gas has the greatest
KE, because the particles are far apart and moving fast
What are the three types of Intermolecular Forces? - Answer- (1) Hydorgen Bonding
(2) Dipole Attraction
(3) Dispersion Forces
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+
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