Identification of Substances
In this kit, students are asked to identify common metallic and non-metallic ions in zinc, cadmium, antimony, barium, sulfate, sulfide, sulfite, and carbonate. Through the identification process, students learn that each substance has distinctive properties. As a closing activity, students conduct chemical tests on four unknown substances. All test results are safe, clear, colorful, and unmistakable!
Details at a Glance
- 1 Day | 1 ~50 minute class period
- 1 Activity
- Accommodates 3 classes, each with 12 groups of 2 students
- Consumables service 72 students
Scientific Concepts
• A thorough introduction to acid and bases
• Produce hydrogen by reacting acids with metals
• Collect and safely test hydrogen
• Produce carbon dioxide by reacting carbonates with acids
• Collect and test carbon dioxide
• Observe effects of acids and bases on indicator dyes
• Measure concentration of acids by titration of an "unknown"
• Perform a neutralization experiment
Guides & Student Sheets
Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.
- Comprehensive Teacher Guide with background information, detailed instruction, example data and answers
- Student Sheets with age appropriate background information, full procedure(s), and analysis items
- Materials necessary for the investigation (beyond common classroom items)
- Safety Data Sheets
Kit Components
- 12 Chemplates with spatulas and gas collector caps, LAB-AIDS®
- 12 Gas delivery tubes
- 3 Hydrochloric Acid, 6M, Drop control bottle
- 3 Limewater, saturated, Drop control bottle
- 3 Sodium sulfide Solution, Drop control bottle
- 1 Antimony Chloride Solution, Drop control bottle
- 1 Barium Chloride Solution, Drop control bottle
- 1 Cadmium Nitrate Solution, Drop control bottle
- 1 Lead Acetate Solution, Drop control bottle
- 1 Potassium Permanganate Solution, Drop control bottle
- 1 Sodium Sulfate Solution, Drop control bottle
- 1 Sodium Sulfite Solution, Drop control bottle
- 1 Zinc Nitrate Solution, Drop control bottle
- 1 Calcium carbonate chips, Vial
- 1 Absorbent paper, Package
- 1 Unknown #1, Vial
- 1 Unknown #2, Vial
- 1 Unknown #3, Vial
- 1 Unknown #4, Vial
- 1 Teacher’s Guide with MSDS
- 50 Student Worksheets and Guides