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1/15 & 1/16 - 8th Grade Agenda
Learning Objective: Learn about Organic CompoundsCollect HW: Reading & Notetaking: p.148 – 150Classwork Chap 6,7&8 Study Guide.Textbook Reading p. 308 - 318HW: Reading & Notetaking p.151 – 152Reminder: Data Table, Graph & Procedure due 2/5 & 2/6 (15 Points) Reminder: Chap 6, 7 & 8 test on 1/22 & 1/23
Daily Reflection
• Prompt: Write 3 facts about polymers.
What is a Isomer?
• Compounds that have the same chemical formula but different structural formulas are called isomers
• Butanes and isobutane have different melting points and boiling points
Double Bond
• Single bond hydrocarbons end in “-ane” like Propane
• Double Bond hydrocarbons end in “-ene” or “-yne” like Ethene.
Hydroxyl Group
• Hydroxyl group is a “OH” compound used for substitute for hydrogen atom in hydrocarbons
• Alcohol is a substituted hydrocarbon that contains one or more hydroxyl group
• Ethanol is produced natually by yeast when they consure sugar stored in corn, wheat and barley
Methanol (poisonous)
Ethanol
Polymers vs. Monomers
• Polymer: A very large molecule (millions of atoms) made of a chain of many smaller molecules.
• Monomer: Smaller molecule – the links that make up the chain
What are some natural Polymers?
What are some examples of Natural Polymers?
• Wool• Cotton• Silk• DNA & RNA• Protein• Carbohydrates• Starch