On completion of the unit you should be able to:
1. balance chemical equations.
2. interpret balanced equations in terms of moles, mass units and number of particles.
3. given the number of moles (or mass or number of particles) of one substance calculate the number of moles ( or mass or number of particles) of another substance in the balanced equation.
4. define limiting and excess reactants.
5. identify the following types of reactions:
6. define endothermic and exothermic reactions.
7. define acids and bases.
|6.1 Law of conservation of energy|
|6.2 Chemical reactions: Law of conservation of mass|
|Reading: Hebden – page 105-106|
|6.3 Balancing chemical equations|
|Reading: Hebden – page 107-112|
|6.4 What is an aqueous solution?
Dissolving NaCl (1st video) NaCl (s) Na+ (aq) + Cl– (aq)
Dissolving NaCl (2nd video) NaCl (s) Na+ (aq) + Cl– (aq)
Dissolving copper(II) chloride CuCl2 (s) Cu+2 (aq) + 2 Cl– (aq)
|6.5 Types of Reactions
Five major classes of chemical reactions
|Reading: Hebden – page 114-118|
|6.6 Endothermic and exothermic reactions
Bill Nye The Science Guy on Chemical Reactions
|6.7 Acids and bases|
Balance chemical equations
Classify and balance chemical equations
Predict and balance chemical equations