Assignment - Demonstrate a Safe Chemical Reaction
Part 1 - Choose a Group and Experiment
For this assignment, you and at most 1 partner will choose a safe reaction from the list below:
- Reactivity trends: hydrochloric acid + aluminum, calcium, magnesium, zinc
- Reactivity trends: water + lithium, sodium, potassium
- Combustion: burning aluminum, calcium, copper, etc.
- Absorption: sodium polyacrylite plus water
- Growing Bismuth Crystal (2:59)
- Vinegar + egg: dissolving the shell
- Fire Snake Experiment (12:33)
- Blue Bottle Equilibrium (2:42)
- Electroplating a metal object (7:02)
- Copper sulphate plus ammonium hydroxide (2:54)
Part 2 - Prior to the Day of the Demonstration
- Describe the reaction
- Write out the chemical names of each reactant (chemical that is consumed in the reaction) and each product (chemical that is produced by the reaction).
- For each reactant and product, identify it as an atom, covalent compound, ionic compound, or other molecule.
- Write out the chemical equation for the reaction.
- Is the reaction exothermic (releases energy) or endothermic (absorbs energy)?
- Complete written lab procedures
- Safety precautions
- Chemicals (reactants)
- Step-by-step procedures
- Clean-up instructions
You must complete everything above before you may get chemicals and attempt to prepare for your demonstration.
- Get chemicals from the teacher
- Perform the lab, and make sure that it works properly
- Prepare the equipment, chemicals, and safety equipment for your demonstration
Part 3 - Day of the Demonstration
- Demonstration of the lab (can be live, or recorded)
- Helping classmates perform the lab