Chem Reactions & Stoichiometry

Chem Reactions & Stoichiometry

1. Outcomes

   • Understand terms
     • Chemical Reactions
     • Balance Equations
   • Calculate Moles

2. Stoichiometry

   • Stoichio = Element
   • Metry = Measure
   • Study of
     • Quantities
     • Produced or Consumed
   • Atomic Mass
   • Weighing

3. Equations

   • ATOMS ARE NEITHER CREATED NOR DESTROYED IN ANY CHEMICAL REACTION
   • When balancing equations we ONLY change the coefficients
   • 4 Bread + 2 Cheese produces 2 Sandwiches
   • Balanced

4. REACTIVITY

   • Simple Patterns
   • Combination Reactions
     • A+B gives C
   • Decompositions Reactions
     • C gives A+B
   • Combustion Reaction
     • Produces a flame
   • Displacement
     • Single
       • AKA Substitution
     • Double
   • REDOX Reactions
     • Electron Transfer
     • Change of Oxidisation Number
     • Drives LIFE

5. Formula & Molecular Mass

   • AKA
     • Molecular Formular
   • Precise Measure
   • Quantitative significance
   • Use Atomic Mass NOT Atomic Number
   • For IONIC Compounds use Formula Limit ?