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Preliminary Information

Topic: Chemical Equations

Purpose: To show you how to use chemical equations to represent chemical reactions and how to use balanced chemical equations to solve problems involving weight relationships in chemical reactions.

Objectives: You have completed this lesson when you can:

1. Define "reagent", "reactant" and "product" and identify them in chemical equations.

2. Distinguish between reactions and equations.

3. Write and interpret word equations.

4. Write and interpret skeleton (unbalanced) equations.

5. Describe what is meant by a balanced equation.

6. Balance simple chemical equations.

7. Use a balanced equation to calculate the amount of one chemical that corresponds to a specified amount of another chemical. ("Corresponds to" can mean "reacts with" or "produces" or "is produced by". The "amount" can be in grams or in moles.)

8. Given the amounts of two reactants, use a balanced equation to identify the limiting reagent, calculate the amount of product(s) formed along with the amount of excess reagent used and left over.

9. Categorize chemical reactions on the basis of chemical equations.

Assignments:

Find and read the parts of your text that deal with chemical equations and the calculations that can be derived from them.

In HBPA-7: Chapter 8, Chapter 9

Lab Work - This lesson's lab work consists of a computer practice session to be done in the lab. You will need to print and hand in a record of your session to get credit for the lab work.

To be turned in -

Note: Get lots of practice balancing equations and working problems.

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