Write the Lewis structure for each molecule or ion. a. N₂H₂ b. N₂H₄ c. C₂H₂

Write the Lewis symbols for the ions in each ionic compound. a. SrO d. RbF

Write the Lewis symbol for each atom or ion. a. Al c. Cl

Each compound contains both ionic and covalent bonds. Write ionic Lewis structures for each, including the covalent structure for the ion in brackets. Write resonance structures if necessary. b. Ca(OH)₂ c. KNO₃ d. LiIO

Write a Lewis structure that obeys the octet rule for each molecule or ion. Include resonance structures if necessary and assign formal charges to each atom. b. CO₃^2– c. ClO^– d. NO₂^–

Draw the Lewis structure for each organic compound from its condensed structural formula. a. C₃H₈ d. CH₃COOH

Arrange these compounds in order of increasing magnitude of lattice energy: KCl, SrO, RbBr, CaO.