Double Displacement Reactions: What Is a Barium swallow?

Here is a video that is a double displacement delight! Show young scientists how to tackle the longest (and most interesting) chemical reactions to write with a video from JFR Science. The narrator shows examples of double displacement reactions, how to manipulate the ions in the equation, and how to apply the solubility rules to determine if a precipitate will form.

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CCSS: Adaptable
Instructional Ideas

  • Use the video to combine teaching double displacement reactions and the solubility rules
  • Perform some double displacement reactions after the video to capture students' interest
Classroom Considerations

  • Pupils should be comfortable with ionic compounds—making them, naming them, and taking them apart
Pros

  • The explanations of soluble and insoluble compounds are spot on
  • The example of the use of a barium sulfate double displacement reaction to study the upper GI tract adds an element of interest to the lesson
Cons

  • None
Common Core