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Warm Up December 5, 2012

Warm Up December 5, 2012. Three students were discussing their ideas about chemical bonds. This is what they said: Carlos: “I think a chemical bond is produced by a molecule. It a substance made up of matter that holds atoms together.”

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Warm Up December 5, 2012

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  1. Warm Up December 5, 2012 • Three students were discussing their ideas about chemical bonds. This is what they said: • Carlos: “I think a chemical bond is produced by a molecule. It a substance made up of matter that holds atoms together.” • Will: “I think a chemical bond is an attraction between atoms. It is not made up of matter.” • Josh: “I think a chemical bond is a structural part of an atom that connects it to other atoms.” • Who do you most agree with and why?

  2. Agenda • Warm Up • Correct Homework • Chemical Bonding Notes • Chemical Bonding Investigation Lab • Cool Down • HW: • Read 5.1 • p. 182 #1a-c, 2a-c • 5.1 Vocabulary Foldable (3 words on p. 176)

  3. Chemical Compounds • Compounds are made of more than one element held together by chemical bonds. • The chemical formula tells you what elements are present and in what amount. The subscript tells you how many atoms of that element are present in the compound

  4. Chemical Bonds • Covalent Bonds: • Form between two non-metals • Valence Electrons are shared • Examples: O2, CO2, H2O, CH4, C6H12O6

  5. Ionic Bonds: • Form between metals and non-metals • Valence Electrons are taken • Examples: MgO, LiCl, Fe2O3,NaCl, BeCl2

  6. Cool Down • Title: Covalent and Ionic Bonds Double Bubble Map

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