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As the most abundant element on the earth, hydrogen requires no replacement. Yet scholars learn to replace hydrogen with a metal to liberate the hydrogen gas. A simple procedure and data table include the necessary information and variables for success in the science lab.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Remind pupils to control the reaction rate, because if it happens too fast, hydrogen and the acid solution escape the tube
- After each pupil or group performs the experiment three times, combine the data from the entire class and look for patterns
Classroom Considerations
- Relies on prior knowledge of moles, balanced chemical equations, and figuring experimental versus percent error
Pros
- Provides diagrams of the proper apparatus setup
- Encourages repeating the experiment for validity
Cons
- None