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AP Chemistry Chemical Bonding and Molecular Geometry — practice questions

Explore 22 free Chemical Bonding and Molecular Geometry questions in AP Chemistry Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Chemical Bonding and Molecular Geometry questions and exercises with answers

Showing questions 1–22 of 22.

A binary ionic compound is made from a nonmetal and a:Read the answer and worked solution →Ionic compounds conduct electricity well once they are:Read the answer and worked solution →It is incorrect to speak of a sodium chloride molecule because the solid is:Read the answer and worked solution →Breaking a chemical bond is a process that is:Read the answer and worked solution →A covalent bond in which the electrons are shared unequally is called:Read the answer and worked solution →In the ionic lattice of sodium chloride, each ion is bonded to how many neighbours?Read the answer and worked solution →Dissociating one mole of solid sodium chloride into separate gaseous ions requires:Read the answer and worked solution →The formula Al2O3 tells you the compound contains two aluminium cations for every:Read the answer and worked solution →Compared with ionic compounds, covalent compounds generally have melting and boiling points that are:Read the answer and worked solution →Most covalent compounds are poor conductors of electricity because they are:Read the answer and worked solution →Breaking the bonds in one mole of hydrogen molecules requires about:Read the answer and worked solution →When transition metals ionise, the electrons removed first come from the:Read the answer and worked solution →The calcium ion Ca2+ is isoelectronic with which noble gas?Read the answer and worked solution →A monatomic anion typically forms when a nonmetal atom gains enough electrons to reach:Read the answer and worked solution →In a chlorine molecule, each chlorine atom ends up surrounded by how many electrons in total?Read the answer and worked solution →For p-block elements forming cations, electrons are removed from which orbitals first?Read the answer and worked solution →An ionic formula such as Al2O3 does not tell you:Read the answer and worked solution →Ionic or covalent?Read the answer and worked solution →True or false: bondingRead the answer and worked solution →Work the bonding numbersRead the answer and worked solution →Match each term to its meaningRead the answer and worked solution →Complete the ionisation ruleRead the answer and worked solution →

Worked practice questions

A binary ionic compound is made from a nonmetal and a:

  1. A pure metal
  2. A noble gas
  3. A halogen
  4. A metalloid
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Correct answer: A. A pure metal

1. The two partners in an ionic bond play opposite roles. 2. Binary ionic compounds are composed of just two elements. 3. One is a metal, which forms the cations, and the other a nonmetal, which forms the anions. 4. Noble gases are stable already and rarely form such compounds. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 7 'Chemical Bonding and Molecular Geometry', sections 7.1-7.6_

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Ionic compounds conduct electricity well once they are:

  1. Dissolved or melted
  2. Cooled below freezing
  3. Ground into a powder
  4. Compressed into pellets
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Correct answer: A. Dissolved or melted

1. Conduction needs charge carriers that are free to move. 2. In a solid lattice the ions are locked in place. 3. Once dissolved or melted, ionic compounds are excellent conductors of electricity and heat because the ions can move about freely. 4. Grinding a solid changes its particle size, not the mobility of its ions. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 7 'Chemical Bonding and Molecular Geometry', sections 7.1-7.6_

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It is incorrect to speak of a sodium chloride molecule because the solid is:

  1. A covalent network of atoms
  2. A three-dimensional lattice
  3. A single giant molecule
  4. A mixture of two metals
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Correct answer: B. A three-dimensional lattice

1. There is not a single ionic bond between any specific pair of sodium and chloride ions. 2. The attraction acts in all directions at once. 3. This results in the ions arranging themselves into a tightly bound, three-dimensional lattice structure. 4. Each ion is bonded to all of the surrounding ions, six in this case. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 7 'Chemical Bonding and Molecular Geometry', sections 7.1-7.6_

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More Chemistry topics

Composition of Substances and SolutionsEquilibria of Other Reaction ClassesSolutions and ColloidsStoichiometry of Chemical ReactionsThermodynamicsAcid-Base EquilibriaAtoms, Molecules, and IonsElectronic Structure and Periodic Properties