Veterans Day AP Quiz

How many valence electrons does indium (In) have?

• 3

• 13

• 5

• 1

What would be the correct charge on an arsenide (As) ion?

• +5 because it gained 5 electrons

• -3 because it lost 3 electrons

• -3 because it gained 3 electrons

• -5 because it lost 5 electrons

Which of the following is TRUE when comparing a C-C bond and and an O-O bond?

• The O-O bond length will be shorter due to the increased radii of the oxygen atoms compared to C atoms

• The O-O bond will be weaker due to the increased radii of the O atoms compared to the C atoms

• Both bonds would be the same length because both S and O are in the same period

• The O-O bond would be stronger because C atoms have a larger radii than O atoms

Which of the following is TRUE when comparing the lattice energies of K2O to Na2O?

• K2O will have the higher lattice energy due to the larger atomic mass of K compared to Na

• Na2O will have the higher lattice energy due to the decreased shielding and higher charge density of Na ions compared to K ions

• K2O will have the higher lattice energy due to the increased shielding and lower charge density of K ions compared to Na ions

• Both lattice energies would be the same due to the Na and K both being in the same period and having the same charge

From left to right, what are the hybridizations of the C atoms in the molecule pictured?

• sp, sp, sp3

• sp, sp3, sp3

• sp2, sp3, sp3

• sp2, sp2, sp3

Based on electronegativity differences, an H-O bond would BEST be described as:

• non-polar covalent

• polar covalent

• ionic

• none of these

What would be the proper ratio of ions in the formula for copper(I)carbonate?

• 1:3

• 1:2

• 1:1

• 2:1

Which of the following would be the correct formula for chromium (III) sulfide?

• Cr2S3

• Cr2(SO4)3

• Cr3SO4

• Cr3S2

What would be the proper name of BaSO4?

• barium sulfite

• barium sulfide

• barium (II) sulfate

• barium sulfate

What would be the bond energy and bond length given the potential energy diagram below?

• Bond energy = -50 , bond length = 8.0 A

• Bond energy = -95, bond length = 3.8 A

• Bond energy = -95, bond length = 8.0 A

• Bond energy = 3.8, bond length = -95