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Lesson Planet
First equations had numbers, then chemical equations had letters, then they added in numeric subscripts, now what is going on with the alphabetic subscripts? The sixth video in a 29-part series explains how states of matter symbols are used in chemical equations. The four states of matter used are not the same as the four states of matter typically studied, so this tutorial is helpful.
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Instructional Ideas
- Create practice equations using all four of the state symbols covered
Classroom Considerations
- Requires prior knowledge of balancing chemical equations
- Assumes learners are comfortable working with subscripts
Pros
- Brief video maintains focus without overwhelming viewers
- Offers a quick review of balancing chemical equations
Cons
- None