Mini lab: Introduction to Chemical Bonding: Comparing Bond Strength of Compounds

Use this easy but meaninful activity to introudce ionic and covalent bonds to students. Students use simple compounds (sugar and salt) to observe first hand how the type of bond impacts properties of substances. Because it is so effective, I use this activity every year. It really helps my students understand physical and chemical peoperties so much better than lecture alone. Teacher answer key is provided! Make teaching easier! Get the entire Chemistry Unit 7 Growing Bundle: Formation and Nature of Ionic Compounds (shown below).

Objective: In this lab students will heat sugar and salt in separate test tubes over a Bunsen burner flame to compare the bond strength between ionic and covalent compounds. Students will also observe physical properties (melting point) of compounds make assumptions about bond types.

Materials:

Test tube, test tube holder, test tube rack, 10mL graduated cylinder, table sugar (sucrose), table salt (NaCl), a heat source such as a Bunsen burner and matches.

For other great resources to make teaching easier follow me for updates! If you like my product, don't forget to write a review! Thank you!

Get the entire growing unit bundle! (Highlighted are items currently available.):

• Unit Plan 7: Formation and Nature of Ionic Bonds
• Unit 7 Powerpont: Formation and Nature of Ionic Bonds
• Review Worksheet 7.1: Naming and Writing Formulas of Ionic Compounds
• Lab Activity: Introduction to Chemical Bonding: Comparing Bond Strength of Compounds
• Lab Activity: Formation of a Salt
• Lab Activity: Metallic Bonding (Observing Onion's Fusible Alloy)
• Unit 7 Review Quiz
• Unit 7 Test

Unit Plan 7 Details:

Make teaching Chemistry easier with this combined unit and daily lesson plan that covers 8 blocks or 16 periods of a secondary high school chemistry course. SIOP, gifted, and differentiation strategies are embedded and easily identified throuought. Lessons are differnetiated accoding to learning style, grouping, and language ability. Both content and literacy standards as well as key vocabulary words, essential questions, activating strategies, instructional strategies, and summarizing strategies are included and highlighted. Video links are provided! (Please note that video links are active but may requires access to United Streaming and/or that you be logged into your google account)

Upon completion of this unit, students will be able to:

Standards:

• SC1: Students will analyze the nature of matter and its classifications.
• SC1c: Predict formulas for stable ionic compounds (binary and tertiary) based on balance of charges.
• SC1d: Use IUPAC nomenclature for both chemical names and formulas for ionic, covalent, acidic compounds.
• SC2: Students will use the Law of Conservation of Matter is used to determine chemical composition in compounds and chemical reactions

Literacy Standards:

• L11-12RST3: Follow precisely a complex multistep procedure when carrying out experiments, taking measurements, or performing technical tasks; analyze the specific results based on explanations in the text.
• L11-12RST8: Evaluate the hypotheses, data, analysis, and conclusions in a science or technical text, verifying the data when possible and corroborating or challenging conclusions with other sources of information.

Language Objectives:

1. Read, define, and discuss key vocabulary terms: alloy, anion, cation, chemical bond, delocalized electrons, electrolyte, electron sea model, formula unit, ionic bond, lattice energy, metallic bond, monatomic ion, oxidation number, oxyanion, polyatomic ion, coordinate covalent/covalent bond, endothermic, exothermic, hybridization, Lewis structure, molecule, oxyacid, pi bond, polar covalent, resonance, sigma bond, structural formula, VSEPR model
2. Listen and write key points discussed in lecture.
3. Calculate, draw, and appropriately color polar/covalent, and ionic bonds.
4. Analyze and interpret conclusions based on experimental data gathered from accurate measurement procedures.

Content Objectives (TSWBAT):

1. Relate bond formation to electron configuration to chemical properties of ionic compounds.
2. Write formulas and names for ionic, covalent, and acidic compounds
3. Discuss the physical properties of metals in terms of metallic bonds.
4. Describe the formation of single, double, and triple bonds.
5. Draw Lewis structures and predict the shape of and the bond angles of a molecule.
6. Compare and contrast polar and nonpolar covalent bonds and molecules.

Differentiated Learning Plan: This Lesson is differentiated by content and learning style at level 1 (L1), Level 2 (L2) and Level 3 (L3).

• Heterogeneous and homogenous grouping will be used depending on lesson objectives.
• Choice of learning activities will be provided as appropriate based on learning style/and intelligence type and content level. These include, but are not limited to computer based activities, labs, case studies, written assignments, and presentations.

Key Vocabulary: Chemical bond, octet rule, anion, cation, crystal lattice, electrolyte, ionic bond, ionic compound, lattice energy, formula unit, monatomic ion, oxidation number, oxyanion, polyatomic ion, alloy, delocalized electron, electron sea model, metallic bond

Resources and Technology: Video: Electron Sea Model/Metallic Compounds, DVD : Atoms and Their Electrons, United Streaming/Internet Access

I would love to hear from you! I am in the process of uploading related resources. If there is anything you would like to see prioritized, please let me know! If you like my product, don't forget to write a review!

Than you for shopping Best for Teachers!

Check out my EXERCISE AND NUTRITOIN PLANS FOR TEACHERS ON TPT OR VISIT MY WEBSITE AT REVERSAGE HEALTH & FITNESS! Download my free 1 Week sample Vegetarian Meal Plan for a summer jumpstart weight loss cleanse!I