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  1. AP Chemistry
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Molecular and Ionic Bonding

Question 1
ChemistryAPExam Style
1 mark

Consider two ionic compounds, NaClNaClNaCl and MgOMgOMgO. Given that Mg2+Mg^{2+}Mg2+ and O2−O^{2-}O2− have higher charges than Na+Na^+Na+ and Cl−Cl^-Cl−, and assuming their ionic radii are comparable, which compound would you expect to have a higher lattice energy?

Question 2
ChemistryAPExam Style
1 mark

Which of the following properties is generally higher for ionic compounds compared to covalent compounds?

Question 3
ChemistryAPExam Style
1 mark

Based on the potential energy diagram for two atoms, what does the lowest point on the curve represent?

Question 4
ChemistryAPExam Style
1 mark

How does increasing the depth of the potential energy well affect the bond strength and melting point of a substance?

Question 5
ChemistryAPExam Style
1 mark

Which of the following changes would increase the lattice energy of an ionic compound, according to Coulomb's Law?

Question 6
ChemistryAPExam Style
1 mark

Steel is an example of which type of alloy?

Question 7
ChemistryAPExam Style
1 mark

Which of the following is the correct Lewis structure for water (H2OH_2OH2​O)?

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Question 8
ChemistryAPExam Style
1 mark

Which of the following statements is true regarding formal charge?

Question 9
ChemistryAPExam Style
1 mark

Which type of bond is typically formed between a metal and a nonmetal?

Question 10
ChemistryAPExam Style
1 mark

Given the electronegativity values: Na = 0.93, Cl = 3.16, O = 3.44, and H = 2.20, predict which compound would exhibit the most ionic character.