# Regents and Final Exam Review - PowerPoint PPT Presentation

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Regents and Final Exam Review. Do Now: Take out a calculator and reference tables. Intermolecular Forces. What are the different types of intermolecular forces? What evidence exists that some compounds have stronger intermolecular forces than others?. Lewis Dot Diagrams.

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Regents and Final Exam Review

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## Regents and Final Exam Review

Do Now: Take out a calculator and reference tables.

### Intermolecular Forces

• What are the different types of intermolecular forces?

• What evidence exists that some compounds have stronger intermolecular forces than others?

### 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?

### Molarity

• What is the formula for calculating molarity?

• Calculate the molarity of a 2.5 liter solution that contains 116g of NaCl.

### Potential Energy Diagrams

• Know the parts of a potential energy diagram.

### Collision Theory

• What does collision theory state?

### Redox Reactions

• Be able to write redox half reactions.

• Example: Na + Cl  NaCl

• Know how a voltaic cell works.

### 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)?

### 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?