Unit 2 Exam 1 Review

Front

What is the number of double bonds in Carbonate (CO₃²⁻)?

Back

1

Front

Rank the crystal lattice energy of the salts MgBr₂, KNO₃, SrS, LiF, CaI₂ from least to greatest.

Back

KNO₃ > LiF > CaI₂ > MgBr₂ > SrS

Front

What is the predicted molecular geometry of ICl₂⁻?

Back

Linear

Front

How do Chromium (Cr³⁺) and Oxygen (O²⁻) bond together?

Back

Cr₂O₃

Front

Which of the following does NOT exhibit resonance: C₆H₆, NO₂⁻, O₃, C₂H₄?

Back

C₂H₄

Front

Define resonance in chemistry.

Back

Resonance is a phenomenon where a molecule can be represented by two or more valid Lewis structures that differ only in the placement of electrons.

Front

What is the significance of Lewis Dot structures?

Back

Lewis Dot structures represent the valence electrons of atoms within a molecule, helping to visualize bonding and lone pairs.

Front

What is crystal lattice energy?

Back

Crystal lattice energy is the energy released when gaseous ions combine to form an ionic solid.

Front

Explain the concept of molecular geometry.

Back

Molecular geometry refers to the three-dimensional arrangement of atoms in a molecule.

Front

What is the formula for calculating lattice energy?

Back

Lattice energy can be estimated using the Born-Lande equation.