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The New Progress Tracker

The New Progress Tracker.

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The New Progress Tracker

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  1. The New Progress Tracker For each section of the module you will be given a progress tracker booklet. This is designed to enable you to sign of when a section of the specification is complete or has been reviewed and to allow communication between you and your teachers about the best way to help you to progress.

  2. F332 – Chemistry of Natural Resources • This module is made up for three main topics • Elements from the Sea • The Atmosphere • Polymer Revolution • This is the biggest module this year, worth 50% of your AS level, therefore 25% of the full A-level

  3. Dot-Cross Diagrams And Introducing Dative Bonding

  4. Objectives Be able to... • Draw simple dot-cross diagrams for ionic and covalent compounds • Describe and draw dative covalent bonds • Link the types of bonding to physical properties of chemicals

  5. Specification...Where this comes from...

  6. Types of bonding There are three types of bond that can occur between atoms: • an ionic bond occursbetween a metal and non-metal atom (e.g. NaCl) • a covalent bond occursbetween two non-metal atoms (e.g. I2, CH4) • a metallic bond occursbetween atoms in a metal (e.g. Cu)

  7. Representing ionic bonding

  8. Covalent bonding

  9. Task • Draw dot-cross diagrams for: • Lithium fluoride • Calcium chloride • Water • Ethene • Phosphorus pentachloride (beware this does not obey the octet rule)

  10. Lithium Fluoride

  11. Calcium chloride

  12. Water

  13. Ethene

  14. Phosphorus Pentachloride

  15. Co-ordinate bonding

  16. Examples of co-ordinate bonds

  17. Task • Explain what a dative covalent bond is and how it is formed. Give examples of molecular ions containing dative covalent bonds. • Draw dot-cross diagrams for: • Hydroxonium ion • Ammonium chloride

  18. Hydroxonium Ion

  19. Ammonium Chloride

  20. Bonding and Properties • How do the properties of chemicals differ within different types of bonding? • Consider: • Melting and Boiling Points • Solubility • Thermal and electrical conductivity • Hardness • Any others you can think of... • Discuss.

  21. Bonding and Properties

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