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This Some Reactions of Carbon Dioxide—Microscale Chemistry activity also includes:
- Apparatus and Techniques for Microscale Chemistry
- Lab & Experiment
- Worksheet
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Precipitation reactions are always interesting. How about one that forms a precipitate using a gas? Chemists of any age will enjoy this twist on a standard solubility lab. Partners observe the lack of interaction between sodium hydroxide and barium nitrate, then produce carbon dioxide in the solution to see the formation of an insoluble salt.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Use the experiment to illustrate precipitation reactions and insoluble salts
- Ask pupils to predict what will happen when they add hydrochloric acid to the marble chips
Classroom Considerations
- Be sure that each working group has copies of the activity series and solubility rules to use as they work
- Substitute limestone if you do not have the marble chips called for in the procedure
Pros
- Reaction is easy to perform and clean up
- The teacher's guide contains solution prep directions and printable materials
Cons
- The title is somewhat misleading, as the included materials only show one reaction
Common Core
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