Chemistry Octet Rule and Bond Types Quiz

Study Notes

Practice Problems for Each Section

Octet Rule
- Problem 1: Explains why elements gain or lose electrons to achieve a stable octet. Includes examples of sodium (Na), chlorine (Cl), and oxygen (O).
- Problem 2: Explains why Neon (Ne) doesn't readily form chemical bonds because it already has a full valence shell.
- Problem 3: Identifies elements that form ions with a +2 charge (Calcium (Ca)). Provides reasons for which elements are likely to form ions with a charge of +2 or another charge. Includes examples of Aluminum (Al) and Sulfur (S), explaining why these elements don't form a +2 ion.
Types of Chemical Bonds
- Problem 1: Classifies compounds as ionic, covalent, or metallic. Includes KCI, H₂O, and a metal wire (Cu)
- Problem 2: Explains why covalent bonds commonly form between nonmetals, but not between metals.
Polar Covalent Bonds
- Problem 1: Identifies bonds as polar or nonpolar covalent. Including examples H-H, H-Cl, and O-H.
- Problem 2: Explains why water (H₂O) is polar while methane (CH₄) is not despite both containing covalent bonds.
- Problem 3: Arranges bonds (C-H, O-H, H-H) in order of increasing polarity.
How Covalent Bonds Work
- Problem 1: Draws Lewis dot structures for molecules. including Cl₂, CO₂, and NH₃.
- Problem 2: Determines the number of shared electron pairs in single, double, and triple bonds (H₂, O₂, N₂).
Predicting Ionic Formulas and Names
- Problem 1: Predicts formulas and names for ionic compounds formed by specific elements. Sodium (Na) and Sulfur (S), Calcium (Ca), and Chlorine (Cl) are included examples.
- Problem 2: Writes formulas for compounds like Aluminum oxide and Potassium sulfide.
- Problem 3: Names compounds such as MgBr₂ and Li₃N.
Using Oxidation States to Predict Ionic Formulas
- Problem 1: Predicts formulas and names of compounds formed from specific elements, like iron (II) and oxygen, and copper (I) and bromine.
- Problem 2: Provides compound names like Fe₂O₃ and SnCl₄.
- Problem 3: Writes formulas for compounds like cobalt (III) nitrate and lead (IV) oxide.
Predicting Covalent Formulas and Writing Names
- Problem 1: Predicts formulas and names of compounds formed by specific elements, such as phosphorus and chlorine, and sulfur and oxygen.
- Problem 2: Provides compound names including N₂O₄ and PCl₅.
- Problem 3: Writes formulas for compounds such as carbon tetrachloride and dinitrogen trioxide