Chemistry 25

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Using Chemical Equations

Chemistry is really about reactions. Chemical change is a rearrangement of atoms  – as one or more substances change to new substances. Mole-to-mole relationships and mass calculations in particular provide a wealth of information to practicing chemists – and to chemistry students. Applying mathematical ratios, making practical use of scientific notation, and thoughtfully comparing both sides of an equation are important skills for chemistry students to master.

Lesson 1 (or “Day 1”) Material
Lesson 2 (or “Day 2”) Material
Lesson 3 (or “Day 3”) Material
Lesson 4 (or “Day 4”) Material

2:20 How to Balance a Chemical Equation by Multiplying by the Denominator : Math Equations & More

11:08 A Beginner’s Guide to Balancing Equations

14:27 Balancing Chemical Equations



Compare Contrast and Debate

Background: Often, in math-related work, there are multiple “paths” for arriving at a correct answer.

  • Position A: Once having mastered one technique, no further techniques are needed or appropriate.
  • Position B: Multiple techniques, if available, are always helpful to learn.

Resources Documents and Links


Notes and Notices

Instructor Emphasis:

  • Science & Engineering Practice: Develop and use models.
  • Cross-Cutting Concept: Patterns.