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Comprehensive Review of Key Chemistry Concepts: Intermolecular Forces, Molarity, and Reactions

Prepare for your exams with this structured review of essential chemistry concepts. Understand the various types of intermolecular forces and the evidence for their strength. Practice drawing Lewis Dot Diagrams for elements and compounds like NaCl and H2O. Master molarity calculations, including examples with NaCl solutions. Familiarize yourself with potential energy diagrams and collision theory. Learn to write and balance chemical equations, including redox reactions and titrations, while reinforcing the laws of mass and energy conservation.

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Comprehensive Review of Key Chemistry Concepts: Intermolecular Forces, Molarity, and Reactions

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  1. Regents and Final Exam Review Do Now: Take out a calculator and reference tables.

  2. Intermolecular Forces • What are the different types of intermolecular forces? • What evidence exists that some compounds have stronger intermolecular forces than others?

  3. Lewis Dot Diagrams • How do we draw dot diagrams for elements such as H, Cl, or Xe? • How do we draw diagrams for compounds such as NaCl or H2O?

  4. Molarity • What is the formula for calculating molarity? • Calculate the molarity of a 2.5 liter solution that contains 116g of NaCl.

  5. Potential Energy Diagrams • Know the parts of a potential energy diagram.

  6. Collision Theory • What does collision theory state?

  7. Redox Reactions • Be able to write redox half reactions. • Example: Na + Cl  NaCl • Know how a voltaic cell works.

  8. Titration • What is the titration formula? • If a 10mL sample of HCl(aq) is completely neutralized by 50mL of 0.25M NaOH(aq) what is the molarity of the HCl(aq)?

  9. Chemical Reactions • Know how to write a chemical formula. • Example: Iron III Oxide • Example: Copper II Sulfide • Know how to balance an equation. • Example: H2 + O2 H2O • Remember the law of conservation of mass and energy. If it takes 4.0g of H2 to make 18g of H2O, how much O2 is used?

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